diff --git a/packages/babel-helpers/src/helpers-generated.ts b/packages/babel-helpers/src/helpers-generated.ts
index 42ba73f1aaa0..facb5286bc61 100644
--- a/packages/babel-helpers/src/helpers-generated.ts
+++ b/packages/babel-helpers/src/helpers-generated.ts
@@ -15,7 +15,7 @@ function helper(minVersion: string, source: string) {
 export default Object.freeze({
   applyDecs: helper(
     "7.17.8",
-    'function createMetadataMethodsForProperty(metadataMap,kind,property,decoratorFinishedRef){return{getMetadata:function(key){assertNotFinished(decoratorFinishedRef,"getMetadata"),assertMetadataKey(key);var metadataForKey=metadataMap[key];if(void 0!==metadataForKey)if(1===kind){var pub=metadataForKey.public;if(void 0!==pub)return pub[property]}else if(2===kind){var priv=metadataForKey.private;if(void 0!==priv)return priv.get(property)}else if(Object.hasOwnProperty.call(metadataForKey,"constructor"))return metadataForKey.constructor},setMetadata:function(key,value){assertNotFinished(decoratorFinishedRef,"setMetadata"),assertMetadataKey(key);var metadataForKey=metadataMap[key];if(void 0===metadataForKey&&(metadataForKey=metadataMap[key]={}),1===kind){var pub=metadataForKey.public;void 0===pub&&(pub=metadataForKey.public={}),pub[property]=value}else if(2===kind){var priv=metadataForKey.priv;void 0===priv&&(priv=metadataForKey.private=new Map),priv.set(property,value)}else metadataForKey.constructor=value}}}function convertMetadataMapToFinal(obj,metadataMap){var parentMetadataMap=obj[Symbol.metadata||Symbol.for("Symbol.metadata")],metadataKeys=Object.getOwnPropertySymbols(metadataMap);if(0!==metadataKeys.length){for(var i=0;i<metadataKeys.length;i++){var key=metadataKeys[i],metaForKey=metadataMap[key],parentMetaForKey=parentMetadataMap?parentMetadataMap[key]:null,pub=metaForKey.public,parentPub=parentMetaForKey?parentMetaForKey.public:null;pub&&parentPub&&Object.setPrototypeOf(pub,parentPub);var priv=metaForKey.private;if(priv){var privArr=Array.from(priv.values()),parentPriv=parentMetaForKey?parentMetaForKey.private:null;parentPriv&&(privArr=privArr.concat(parentPriv)),metaForKey.private=privArr}parentMetaForKey&&Object.setPrototypeOf(metaForKey,parentMetaForKey)}parentMetadataMap&&Object.setPrototypeOf(metadataMap,parentMetadataMap),obj[Symbol.metadata||Symbol.for("Symbol.metadata")]=metadataMap}}function createAddInitializerMethod(initializers,decoratorFinishedRef){return function(initializer){assertNotFinished(decoratorFinishedRef,"addInitializer"),assertCallable(initializer,"An initializer"),initializers.push(initializer)}}function memberDec(dec,name,desc,metadataMap,initializers,kind,isStatic,isPrivate,value){var kindStr;switch(kind){case 1:kindStr="accessor";break;case 2:kindStr="method";break;case 3:kindStr="getter";break;case 4:kindStr="setter";break;default:kindStr="field"}var metadataKind,metadataName,ctx={kind:kindStr,name:isPrivate?"#"+name:name,isStatic:isStatic,isPrivate:isPrivate},decoratorFinishedRef={v:!1};if(0!==kind&&(ctx.addInitializer=createAddInitializerMethod(initializers,decoratorFinishedRef)),isPrivate){metadataKind=2,metadataName=Symbol(name);var access={};0===kind?(access.get=desc.get,access.set=desc.set):2===kind?access.get=function(){return desc.value}:(1!==kind&&3!==kind||(access.get=function(){return desc.get.call(this)}),1!==kind&&4!==kind||(access.set=function(v){desc.set.call(this,v)})),ctx.access=access}else metadataKind=1,metadataName=name;try{return dec(value,Object.assign(ctx,createMetadataMethodsForProperty(metadataMap,metadataKind,metadataName,decoratorFinishedRef)))}finally{decoratorFinishedRef.v=!0}}function assertNotFinished(decoratorFinishedRef,fnName){if(decoratorFinishedRef.v)throw new Error("attempted to call "+fnName+" after decoration was finished")}function assertMetadataKey(key){if("symbol"!=typeof key)throw new TypeError("Metadata keys must be symbols, received: "+key)}function assertCallable(fn,hint){if("function"!=typeof fn)throw new TypeError(hint+" must be a function")}function assertValidReturnValue(kind,value){var type=typeof value;if(1===kind){if("object"!==type||null===value)throw new TypeError("accessor decorators must return an object with get, set, or init properties or void 0");void 0!==value.get&&assertCallable(value.get,"accessor.get"),void 0!==value.set&&assertCallable(value.set,"accessor.set"),void 0!==value.init&&assertCallable(value.init,"accessor.init"),void 0!==value.initializer&&assertCallable(value.initializer,"accessor.initializer")}else if("function"!==type){var hint;throw hint=0===kind?"field":10===kind?"class":"method",new TypeError(hint+" decorators must return a function or void 0")}}function getInit(desc){var initializer;return null==(initializer=desc.init)&&(initializer=desc.initializer)&&"undefined"!=typeof console&&console.warn(".initializer has been renamed to .init as of March 2022"),initializer}function applyMemberDec(ret,base,decInfo,name,kind,isStatic,isPrivate,metadataMap,initializers){var desc,initializer,value,newValue,get,set,decs=decInfo[0];if(isPrivate?desc=0===kind||1===kind?{get:decInfo[3],set:decInfo[4]}:3===kind?{get:decInfo[3]}:4===kind?{set:decInfo[3]}:{value:decInfo[3]}:0!==kind&&(desc=Object.getOwnPropertyDescriptor(base,name)),1===kind?value={get:desc.get,set:desc.set}:2===kind?value=desc.value:3===kind?value=desc.get:4===kind&&(value=desc.set),"function"==typeof decs)void 0!==(newValue=memberDec(decs,name,desc,metadataMap,initializers,kind,isStatic,isPrivate,value))&&(assertValidReturnValue(kind,newValue),0===kind?initializer=newValue:1===kind?(initializer=getInit(newValue),get=newValue.get||value.get,set=newValue.set||value.set,value={get:get,set:set}):value=newValue);else for(var i=decs.length-1;i>=0;i--){var newInit;if(void 0!==(newValue=memberDec(decs[i],name,desc,metadataMap,initializers,kind,isStatic,isPrivate,value)))assertValidReturnValue(kind,newValue),0===kind?newInit=newValue:1===kind?(newInit=getInit(newValue),get=newValue.get||value.get,set=newValue.set||value.set,value={get:get,set:set}):value=newValue,void 0!==newInit&&(void 0===initializer?initializer=newInit:"function"==typeof initializer?initializer=[initializer,newInit]:initializer.push(newInit))}if(0===kind||1===kind){if(void 0===initializer)initializer=function(instance,init){return init};else if("function"!=typeof initializer){var ownInitializers=initializer;initializer=function(instance,init){for(var value=init,i=0;i<ownInitializers.length;i++)value=ownInitializers[i].call(instance,value);return value}}else{var originalInitializer=initializer;initializer=function(instance,init){return originalInitializer.call(instance,init)}}ret.push(initializer)}0!==kind&&(1===kind?(desc.get=value.get,desc.set=value.set):2===kind?desc.value=value:3===kind?desc.get=value:4===kind&&(desc.set=value),isPrivate?1===kind?(ret.push((function(instance,args){return value.get.call(instance,args)})),ret.push((function(instance,args){return value.set.call(instance,args)}))):2===kind?ret.push(value):ret.push((function(instance,args){return value.call(instance,args)})):Object.defineProperty(base,name,desc))}function applyMemberDecs(ret,Class,protoMetadataMap,staticMetadataMap,decInfos){for(var protoInitializers,staticInitializers,existingProtoNonFields=new Map,existingStaticNonFields=new Map,i=0;i<decInfos.length;i++){var decInfo=decInfos[i];if(Array.isArray(decInfo)){var base,metadataMap,initializers,kind=decInfo[1],name=decInfo[2],isPrivate=decInfo.length>3,isStatic=kind>=5;if(isStatic?(base=Class,metadataMap=staticMetadataMap,0!==(kind-=5)&&(initializers=staticInitializers=staticInitializers||[])):(base=Class.prototype,metadataMap=protoMetadataMap,0!==kind&&(initializers=protoInitializers=protoInitializers||[])),0!==kind&&!isPrivate){var existingNonFields=isStatic?existingStaticNonFields:existingProtoNonFields,existingKind=existingNonFields.get(name)||0;if(!0===existingKind||3===existingKind&&4!==kind||4===existingKind&&3!==kind)throw new Error("Attempted to decorate a public method/accessor that has the same name as a previously decorated public method/accessor. This is not currently supported by the decorators plugin. Property name was: "+name);!existingKind&&kind>2?existingNonFields.set(name,kind):existingNonFields.set(name,!0)}applyMemberDec(ret,base,decInfo,name,kind,isStatic,isPrivate,metadataMap,initializers)}}pushInitializers(ret,protoInitializers),pushInitializers(ret,staticInitializers)}function pushInitializers(ret,initializers){initializers&&ret.push((function(instance){for(var i=0;i<initializers.length;i++)initializers[i].call(instance);return instance}))}function applyClassDecs(ret,targetClass,metadataMap,classDecs){if(classDecs.length>0){for(var initializers=[],newClass=targetClass,name=targetClass.name,i=classDecs.length-1;i>=0;i--){var decoratorFinishedRef={v:!1};try{var ctx=Object.assign({kind:"class",name:name,addInitializer:createAddInitializerMethod(initializers,decoratorFinishedRef)},createMetadataMethodsForProperty(metadataMap,0,name,decoratorFinishedRef)),nextNewClass=classDecs[i](newClass,ctx)}finally{decoratorFinishedRef.v=!0}void 0!==nextNewClass&&(assertValidReturnValue(10,nextNewClass),newClass=nextNewClass)}ret.push(newClass,(function(){for(var i=0;i<initializers.length;i++)initializers[i].call(newClass)}))}}export default function applyDecs(targetClass,memberDecs,classDecs){var ret=[],staticMetadataMap={},protoMetadataMap={};return applyMemberDecs(ret,targetClass,protoMetadataMap,staticMetadataMap,memberDecs),convertMetadataMapToFinal(targetClass.prototype,protoMetadataMap),applyClassDecs(ret,targetClass,staticMetadataMap,classDecs),convertMetadataMapToFinal(targetClass,staticMetadataMap),ret}',
+    'function old_createMetadataMethodsForProperty(metadataMap,kind,property,decoratorFinishedRef){return{getMetadata:function(key){old_assertNotFinished(decoratorFinishedRef,"getMetadata"),old_assertMetadataKey(key);var metadataForKey=metadataMap[key];if(void 0!==metadataForKey)if(1===kind){var pub=metadataForKey.public;if(void 0!==pub)return pub[property]}else if(2===kind){var priv=metadataForKey.private;if(void 0!==priv)return priv.get(property)}else if(Object.hasOwnProperty.call(metadataForKey,"constructor"))return metadataForKey.constructor},setMetadata:function(key,value){old_assertNotFinished(decoratorFinishedRef,"setMetadata"),old_assertMetadataKey(key);var metadataForKey=metadataMap[key];if(void 0===metadataForKey&&(metadataForKey=metadataMap[key]={}),1===kind){var pub=metadataForKey.public;void 0===pub&&(pub=metadataForKey.public={}),pub[property]=value}else if(2===kind){var priv=metadataForKey.priv;void 0===priv&&(priv=metadataForKey.private=new Map),priv.set(property,value)}else metadataForKey.constructor=value}}}function old_convertMetadataMapToFinal(obj,metadataMap){var parentMetadataMap=obj[Symbol.metadata||Symbol.for("Symbol.metadata")],metadataKeys=Object.getOwnPropertySymbols(metadataMap);if(0!==metadataKeys.length){for(var i=0;i<metadataKeys.length;i++){var key=metadataKeys[i],metaForKey=metadataMap[key],parentMetaForKey=parentMetadataMap?parentMetadataMap[key]:null,pub=metaForKey.public,parentPub=parentMetaForKey?parentMetaForKey.public:null;pub&&parentPub&&Object.setPrototypeOf(pub,parentPub);var priv=metaForKey.private;if(priv){var privArr=Array.from(priv.values()),parentPriv=parentMetaForKey?parentMetaForKey.private:null;parentPriv&&(privArr=privArr.concat(parentPriv)),metaForKey.private=privArr}parentMetaForKey&&Object.setPrototypeOf(metaForKey,parentMetaForKey)}parentMetadataMap&&Object.setPrototypeOf(metadataMap,parentMetadataMap),obj[Symbol.metadata||Symbol.for("Symbol.metadata")]=metadataMap}}function old_createAddInitializerMethod(initializers,decoratorFinishedRef){return function(initializer){old_assertNotFinished(decoratorFinishedRef,"addInitializer"),old_assertCallable(initializer,"An initializer"),initializers.push(initializer)}}function old_memberDec(dec,name,desc,metadataMap,initializers,kind,isStatic,isPrivate,value){var kindStr;switch(kind){case 1:kindStr="accessor";break;case 2:kindStr="method";break;case 3:kindStr="getter";break;case 4:kindStr="setter";break;default:kindStr="field"}var metadataKind,metadataName,ctx={kind:kindStr,name:isPrivate?"#"+name:name,isStatic:isStatic,isPrivate:isPrivate},decoratorFinishedRef={v:!1};if(0!==kind&&(ctx.addInitializer=old_createAddInitializerMethod(initializers,decoratorFinishedRef)),isPrivate){metadataKind=2,metadataName=Symbol(name);var access={};0===kind?(access.get=desc.get,access.set=desc.set):2===kind?access.get=function(){return desc.value}:(1!==kind&&3!==kind||(access.get=function(){return desc.get.call(this)}),1!==kind&&4!==kind||(access.set=function(v){desc.set.call(this,v)})),ctx.access=access}else metadataKind=1,metadataName=name;try{return dec(value,Object.assign(ctx,old_createMetadataMethodsForProperty(metadataMap,metadataKind,metadataName,decoratorFinishedRef)))}finally{decoratorFinishedRef.v=!0}}function old_assertNotFinished(decoratorFinishedRef,fnName){if(decoratorFinishedRef.v)throw new Error("attempted to call "+fnName+" after decoration was finished")}function old_assertMetadataKey(key){if("symbol"!=typeof key)throw new TypeError("Metadata keys must be symbols, received: "+key)}function old_assertCallable(fn,hint){if("function"!=typeof fn)throw new TypeError(hint+" must be a function")}function old_assertValidReturnValue(kind,value){var type=typeof value;if(1===kind){if("object"!==type||null===value)throw new TypeError("accessor decorators must return an object with get, set, or init properties or void 0");void 0!==value.get&&old_assertCallable(value.get,"accessor.get"),void 0!==value.set&&old_assertCallable(value.set,"accessor.set"),void 0!==value.init&&old_assertCallable(value.init,"accessor.init"),void 0!==value.initializer&&old_assertCallable(value.initializer,"accessor.initializer")}else if("function"!==type){var hint;throw hint=0===kind?"field":10===kind?"class":"method",new TypeError(hint+" decorators must return a function or void 0")}}function old_getInit(desc){var initializer;return null==(initializer=desc.init)&&(initializer=desc.initializer)&&"undefined"!=typeof console&&console.warn(".initializer has been renamed to .init as of March 2022"),initializer}function old_applyMemberDec(ret,base,decInfo,name,kind,isStatic,isPrivate,metadataMap,initializers){var desc,initializer,value,newValue,get,set,decs=decInfo[0];if(isPrivate?desc=0===kind||1===kind?{get:decInfo[3],set:decInfo[4]}:3===kind?{get:decInfo[3]}:4===kind?{set:decInfo[3]}:{value:decInfo[3]}:0!==kind&&(desc=Object.getOwnPropertyDescriptor(base,name)),1===kind?value={get:desc.get,set:desc.set}:2===kind?value=desc.value:3===kind?value=desc.get:4===kind&&(value=desc.set),"function"==typeof decs)void 0!==(newValue=old_memberDec(decs,name,desc,metadataMap,initializers,kind,isStatic,isPrivate,value))&&(old_assertValidReturnValue(kind,newValue),0===kind?initializer=newValue:1===kind?(initializer=old_getInit(newValue),get=newValue.get||value.get,set=newValue.set||value.set,value={get:get,set:set}):value=newValue);else for(var i=decs.length-1;i>=0;i--){var newInit;if(void 0!==(newValue=old_memberDec(decs[i],name,desc,metadataMap,initializers,kind,isStatic,isPrivate,value)))old_assertValidReturnValue(kind,newValue),0===kind?newInit=newValue:1===kind?(newInit=old_getInit(newValue),get=newValue.get||value.get,set=newValue.set||value.set,value={get:get,set:set}):value=newValue,void 0!==newInit&&(void 0===initializer?initializer=newInit:"function"==typeof initializer?initializer=[initializer,newInit]:initializer.push(newInit))}if(0===kind||1===kind){if(void 0===initializer)initializer=function(instance,init){return init};else if("function"!=typeof initializer){var ownInitializers=initializer;initializer=function(instance,init){for(var value=init,i=0;i<ownInitializers.length;i++)value=ownInitializers[i].call(instance,value);return value}}else{var originalInitializer=initializer;initializer=function(instance,init){return originalInitializer.call(instance,init)}}ret.push(initializer)}0!==kind&&(1===kind?(desc.get=value.get,desc.set=value.set):2===kind?desc.value=value:3===kind?desc.get=value:4===kind&&(desc.set=value),isPrivate?1===kind?(ret.push((function(instance,args){return value.get.call(instance,args)})),ret.push((function(instance,args){return value.set.call(instance,args)}))):2===kind?ret.push(value):ret.push((function(instance,args){return value.call(instance,args)})):Object.defineProperty(base,name,desc))}function old_applyMemberDecs(ret,Class,protoMetadataMap,staticMetadataMap,decInfos){for(var protoInitializers,staticInitializers,existingProtoNonFields=new Map,existingStaticNonFields=new Map,i=0;i<decInfos.length;i++){var decInfo=decInfos[i];if(Array.isArray(decInfo)){var base,metadataMap,initializers,kind=decInfo[1],name=decInfo[2],isPrivate=decInfo.length>3,isStatic=kind>=5;if(isStatic?(base=Class,metadataMap=staticMetadataMap,0!==(kind-=5)&&(initializers=staticInitializers=staticInitializers||[])):(base=Class.prototype,metadataMap=protoMetadataMap,0!==kind&&(initializers=protoInitializers=protoInitializers||[])),0!==kind&&!isPrivate){var existingNonFields=isStatic?existingStaticNonFields:existingProtoNonFields,existingKind=existingNonFields.get(name)||0;if(!0===existingKind||3===existingKind&&4!==kind||4===existingKind&&3!==kind)throw new Error("Attempted to decorate a public method/accessor that has the same name as a previously decorated public method/accessor. This is not currently supported by the decorators plugin. Property name was: "+name);!existingKind&&kind>2?existingNonFields.set(name,kind):existingNonFields.set(name,!0)}old_applyMemberDec(ret,base,decInfo,name,kind,isStatic,isPrivate,metadataMap,initializers)}}old_pushInitializers(ret,protoInitializers),old_pushInitializers(ret,staticInitializers)}function old_pushInitializers(ret,initializers){initializers&&ret.push((function(instance){for(var i=0;i<initializers.length;i++)initializers[i].call(instance);return instance}))}function old_applyClassDecs(ret,targetClass,metadataMap,classDecs){if(classDecs.length>0){for(var initializers=[],newClass=targetClass,name=targetClass.name,i=classDecs.length-1;i>=0;i--){var decoratorFinishedRef={v:!1};try{var ctx=Object.assign({kind:"class",name:name,addInitializer:old_createAddInitializerMethod(initializers,decoratorFinishedRef)},old_createMetadataMethodsForProperty(metadataMap,0,name,decoratorFinishedRef)),nextNewClass=classDecs[i](newClass,ctx)}finally{decoratorFinishedRef.v=!0}void 0!==nextNewClass&&(old_assertValidReturnValue(10,nextNewClass),newClass=nextNewClass)}ret.push(newClass,(function(){for(var i=0;i<initializers.length;i++)initializers[i].call(newClass)}))}}export default function applyDecs(targetClass,memberDecs,classDecs){var ret=[],staticMetadataMap={},protoMetadataMap={};return old_applyMemberDecs(ret,targetClass,protoMetadataMap,staticMetadataMap,memberDecs),old_convertMetadataMapToFinal(targetClass.prototype,protoMetadataMap),old_applyClassDecs(ret,targetClass,staticMetadataMap,classDecs),old_convertMetadataMapToFinal(targetClass,staticMetadataMap),ret}',
   ),
   applyDecs2203: helper(
     "7.17.8",
diff --git a/packages/babel-helpers/src/helpers/applyDecs.js b/packages/babel-helpers/src/helpers/applyDecs.js
index 3375b8d358ae..b85eea25f996 100644
--- a/packages/babel-helpers/src/helpers/applyDecs.js
+++ b/packages/babel-helpers/src/helpers/applyDecs.js
@@ -23,7 +23,7 @@
   CLASS = 10; // only used in assertValidReturnValue
 */
 
-function createMetadataMethodsForProperty(
+function old_createMetadataMethodsForProperty(
   metadataMap,
   kind,
   property,
@@ -31,8 +31,8 @@ function createMetadataMethodsForProperty(
 ) {
   return {
     getMetadata: function (key) {
-      assertNotFinished(decoratorFinishedRef, "getMetadata");
-      assertMetadataKey(key);
+      old_assertNotFinished(decoratorFinishedRef, "getMetadata");
+      old_assertMetadataKey(key);
 
       var metadataForKey = metadataMap[key];
 
@@ -53,8 +53,8 @@ function createMetadataMethodsForProperty(
       }
     },
     setMetadata: function (key, value) {
-      assertNotFinished(decoratorFinishedRef, "setMetadata");
-      assertMetadataKey(key);
+      old_assertNotFinished(decoratorFinishedRef, "setMetadata");
+      old_assertMetadataKey(key);
 
       var metadataForKey = metadataMap[key];
 
@@ -85,7 +85,7 @@ function createMetadataMethodsForProperty(
   };
 }
 
-function convertMetadataMapToFinal(obj, metadataMap) {
+function old_convertMetadataMapToFinal(obj, metadataMap) {
   var parentMetadataMap = obj[Symbol.metadata || Symbol.for("Symbol.metadata")];
   var metadataKeys = Object.getOwnPropertySymbols(metadataMap);
 
@@ -128,15 +128,15 @@ function convertMetadataMapToFinal(obj, metadataMap) {
   obj[Symbol.metadata || Symbol.for("Symbol.metadata")] = metadataMap;
 }
 
-function createAddInitializerMethod(initializers, decoratorFinishedRef) {
+function old_createAddInitializerMethod(initializers, decoratorFinishedRef) {
   return function addInitializer(initializer) {
-    assertNotFinished(decoratorFinishedRef, "addInitializer");
-    assertCallable(initializer, "An initializer");
+    old_assertNotFinished(decoratorFinishedRef, "addInitializer");
+    old_assertCallable(initializer, "An initializer");
     initializers.push(initializer);
   };
 }
 
-function memberDec(
+function old_memberDec(
   dec,
   name,
   desc,
@@ -176,7 +176,7 @@ function memberDec(
   var decoratorFinishedRef = { v: false };
 
   if (kind !== 0 /* FIELD */) {
-    ctx.addInitializer = createAddInitializerMethod(
+    ctx.addInitializer = old_createAddInitializerMethod(
       initializers,
       decoratorFinishedRef
     );
@@ -223,7 +223,7 @@ function memberDec(
       value,
       Object.assign(
         ctx,
-        createMetadataMethodsForProperty(
+        old_createMetadataMethodsForProperty(
           metadataMap,
           metadataKind,
           metadataName,
@@ -236,7 +236,7 @@ function memberDec(
   }
 }
 
-function assertNotFinished(decoratorFinishedRef, fnName) {
+function old_assertNotFinished(decoratorFinishedRef, fnName) {
   if (decoratorFinishedRef.v) {
     throw new Error(
       "attempted to call " + fnName + " after decoration was finished"
@@ -244,19 +244,19 @@ function assertNotFinished(decoratorFinishedRef, fnName) {
   }
 }
 
-function assertMetadataKey(key) {
+function old_assertMetadataKey(key) {
   if (typeof key !== "symbol") {
     throw new TypeError("Metadata keys must be symbols, received: " + key);
   }
 }
 
-function assertCallable(fn, hint) {
+function old_assertCallable(fn, hint) {
   if (typeof fn !== "function") {
     throw new TypeError(hint + " must be a function");
   }
 }
 
-function assertValidReturnValue(kind, value) {
+function old_assertValidReturnValue(kind, value) {
   var type = typeof value;
 
   if (kind === 1 /* ACCESSOR */) {
@@ -266,16 +266,16 @@ function assertValidReturnValue(kind, value) {
       );
     }
     if (value.get !== undefined) {
-      assertCallable(value.get, "accessor.get");
+      old_assertCallable(value.get, "accessor.get");
     }
     if (value.set !== undefined) {
-      assertCallable(value.set, "accessor.set");
+      old_assertCallable(value.set, "accessor.set");
     }
     if (value.init !== undefined) {
-      assertCallable(value.init, "accessor.init");
+      old_assertCallable(value.init, "accessor.init");
     }
     if (value.initializer !== undefined) {
-      assertCallable(value.initializer, "accessor.initializer");
+      old_assertCallable(value.initializer, "accessor.initializer");
     }
   } else if (type !== "function") {
     var hint;
@@ -290,7 +290,7 @@ function assertValidReturnValue(kind, value) {
   }
 }
 
-function getInit(desc) {
+function old_getInit(desc) {
   var initializer;
   if (
     (initializer = desc.init) == null &&
@@ -302,7 +302,7 @@ function getInit(desc) {
   return initializer;
 }
 
-function applyMemberDec(
+function old_applyMemberDec(
   ret,
   base,
   decInfo,
@@ -356,7 +356,7 @@ function applyMemberDec(
   var newValue, get, set;
 
   if (typeof decs === "function") {
-    newValue = memberDec(
+    newValue = old_memberDec(
       decs,
       name,
       desc,
@@ -369,12 +369,12 @@ function applyMemberDec(
     );
 
     if (newValue !== void 0) {
-      assertValidReturnValue(kind, newValue);
+      old_assertValidReturnValue(kind, newValue);
 
       if (kind === 0 /* FIELD */) {
         initializer = newValue;
       } else if (kind === 1 /* ACCESSOR */) {
-        initializer = getInit(newValue);
+        initializer = old_getInit(newValue);
         get = newValue.get || value.get;
         set = newValue.set || value.set;
 
@@ -387,7 +387,7 @@ function applyMemberDec(
     for (var i = decs.length - 1; i >= 0; i--) {
       var dec = decs[i];
 
-      newValue = memberDec(
+      newValue = old_memberDec(
         dec,
         name,
         desc,
@@ -400,13 +400,13 @@ function applyMemberDec(
       );
 
       if (newValue !== void 0) {
-        assertValidReturnValue(kind, newValue);
+        old_assertValidReturnValue(kind, newValue);
         var newInit;
 
         if (kind === 0 /* FIELD */) {
           newInit = newValue;
         } else if (kind === 1 /* ACCESSOR */) {
-          newInit = getInit(newValue);
+          newInit = old_getInit(newValue);
           get = newValue.get || value.get;
           set = newValue.set || value.set;
 
@@ -490,7 +490,7 @@ function applyMemberDec(
   }
 }
 
-function applyMemberDecs(
+function old_applyMemberDecs(
   ret,
   Class,
   protoMetadataMap,
@@ -560,7 +560,7 @@ function applyMemberDecs(
       }
     }
 
-    applyMemberDec(
+    old_applyMemberDec(
       ret,
       base,
       decInfo,
@@ -573,11 +573,11 @@ function applyMemberDecs(
     );
   }
 
-  pushInitializers(ret, protoInitializers);
-  pushInitializers(ret, staticInitializers);
+  old_pushInitializers(ret, protoInitializers);
+  old_pushInitializers(ret, staticInitializers);
 }
 
-function pushInitializers(ret, initializers) {
+function old_pushInitializers(ret, initializers) {
   if (initializers) {
     ret.push(function (instance) {
       for (var i = 0; i < initializers.length; i++) {
@@ -588,7 +588,7 @@ function pushInitializers(ret, initializers) {
   }
 }
 
-function applyClassDecs(ret, targetClass, metadataMap, classDecs) {
+function old_applyClassDecs(ret, targetClass, metadataMap, classDecs) {
   if (classDecs.length > 0) {
     var initializers = [];
     var newClass = targetClass;
@@ -602,12 +602,12 @@ function applyClassDecs(ret, targetClass, metadataMap, classDecs) {
           {
             kind: "class",
             name: name,
-            addInitializer: createAddInitializerMethod(
+            addInitializer: old_createAddInitializerMethod(
               initializers,
               decoratorFinishedRef
             ),
           },
-          createMetadataMethodsForProperty(
+          old_createMetadataMethodsForProperty(
             metadataMap,
             0 /* CONSTRUCTOR */,
             name,
@@ -620,7 +620,7 @@ function applyClassDecs(ret, targetClass, metadataMap, classDecs) {
       }
 
       if (nextNewClass !== undefined) {
-        assertValidReturnValue(10 /* CLASS */, nextNewClass);
+        old_assertValidReturnValue(10 /* CLASS */, nextNewClass);
         newClass = nextNewClass;
       }
     }
@@ -784,7 +784,7 @@ export default function applyDecs(targetClass, memberDecs, classDecs) {
 
   var protoMetadataMap = {};
 
-  applyMemberDecs(
+  old_applyMemberDecs(
     ret,
     targetClass,
     protoMetadataMap,
@@ -792,11 +792,11 @@ export default function applyDecs(targetClass, memberDecs, classDecs) {
     memberDecs
   );
 
-  convertMetadataMapToFinal(targetClass.prototype, protoMetadataMap);
+  old_convertMetadataMapToFinal(targetClass.prototype, protoMetadataMap);
 
-  applyClassDecs(ret, targetClass, staticMetadataMap, classDecs);
+  old_applyClassDecs(ret, targetClass, staticMetadataMap, classDecs);
 
-  convertMetadataMapToFinal(targetClass, staticMetadataMap);
+  old_convertMetadataMapToFinal(targetClass, staticMetadataMap);
 
   return ret;
 }