fix(es/compat): Do not reuse span (#9117)

**Related issue:**

 - Closes #9108

Author: kdy1

crates/swc/tests/fixture/issues-9xxx/9110/input/.swcrc

@@ -0,0 +1,31 @@
+{
+    "module": {
+        "type": "es6",
+        "strictMode": true,
+        "noInterop": false
+    },
+    "jsc": {
+        "externalHelpers": false,
+        "target": "es2017",
+        "parser": {
+            "syntax": "typescript",
+            "tsx": true,
+            "decorators": true,
+            "dynamicImport": true
+        },
+        "transform": {
+            "legacyDecorator": true,
+            "decoratorMetadata": false,
+            "react": {
+                "throwIfNamespace": false,
+                "useBuiltins": false,
+                "pragma": "React.createElement",
+                "pragmaFrag": "React.Fragment",
+                "importSource": "react",
+                "runtime": "automatic"
+            }
+        },
+        "keepClassNames": true,
+        "paths": {},
+    }
+}

crates/swc/tests/fixture/issues-9xxx/9110/input/1.js

@@ -0,0 +1,3 @@
+const createFragment = (key: { name: string }): JSX.Element => (
+    <>Key Name: {key.name ?? "None"}</>
+);

crates/swc/tests/fixture/issues-9xxx/9110/output/1.js

@@ -0,0 +1,10 @@
+const { jsxs: _jsxs, Fragment: _Fragment } = require("react/jsx-runtime");
+const createFragment = (key)=>{
+    var _key_name;
+    return /*#__PURE__*/ _jsxs(_Fragment, {
+        children: [
+            "Key Name: ",
+            (_key_name = key.name) !== null && _key_name !== void 0 ? _key_name : "None"
+        ]
+    });
+};

crates/swc_ecma_compat_es2020/src/nullish_coalescing.rs

@@ -1,7 +1,7 @@
 use std::mem::take;
 
 use serde::Deserialize;
-use swc_common::{util::take::Take, Span, Spanned, DUMMY_SP};
+use swc_common::{util::take::Take, Span, DUMMY_SP};
 use swc_ecma_ast::*;
 use swc_ecma_utils::{alias_ident_for_simple_assign_tatget, alias_if_required, StmtLike};
 use swc_ecma_visit::{as_folder, noop_visit_mut_type, Fold, VisitMut, VisitMutWith};
@@ -192,7 +192,6 @@ impl VisitMut for NullishCoalescing {
             if let BlockStmtOrExpr::Expr(expr) = n {
                 // expr
                 // { var decl = init; return expr; }
-                let span = expr.span();
                 let stmts = vec![
                     VarDecl {
                         span: DUMMY_SP,
@@ -206,7 +205,10 @@ impl VisitMut for NullishCoalescing {
                         arg: Some(expr.take()),
                     }),
                 ];
-                *n = BlockStmtOrExpr::BlockStmt(BlockStmt { span, stmts });
+                *n = BlockStmtOrExpr::BlockStmt(BlockStmt {
+                    span: DUMMY_SP,
+                    stmts,
+                });
             }
         }