Add tests for babel/babel#13143

tests/misc/errors/typescript/babel-ts/__snapshots__/jsfmt.spec.js.snap

@@ -16,6 +16,16 @@ exports[`classAbstractMethodWithImplementation.ts [babel-ts] format 1`] = `
   3 | }"
 `;
 
+exports[`declare-accessor.ts [babel-ts] format 1`] = `
+"'declare' is not allowed in getters. (2:3)
+  1 | class Foo {
+> 2 |   declare get foo()
+    |   ^
+  3 |   declare set foo(v)
+  4 | }
+  5 |"
+`;
+
 exports[`snippet: #0 [babel-ts] format 1`] = `
 "Invalid left-hand side in assignment expression (1:1)
 > 1 | foo as any = 10;

tests/misc/errors/typescript/babel-ts/declare-accessor.ts

@@ -0,0 +1,4 @@
+class Foo {
+  declare get foo()
+  declare set foo(v)
+}

tests/typescript/declare/__snapshots__/jsfmt.spec.js.snap

@@ -195,3 +195,23 @@ declare const hello2 = 5;
 
 ================================================================================
 `;
+
+exports[`declare-get-set-field.ts format 1`] = `
+====================================options=====================================
+parsers: ["typescript"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class C {
+  declare get: string
+  declare set: string;
+}
+
+=====================================output=====================================
+class C {
+  declare get: string;
+  declare set: string;
+}
+
+================================================================================
+`;

tests/typescript/declare/declare-get-set-field.ts

@@ -0,0 +1,4 @@
+class C {
+  declare get: string
+  declare set: string;
+}