Fix export assignment emit

Author: andrewbranch

src/compiler/checker.ts

@@ -47585,7 +47585,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
                 );
             case SyntaxKind.ExportAssignment:
                 return (node as ExportAssignment).expression && (node as ExportAssignment).expression.kind === SyntaxKind.Identifier ?
-                    isAliasResolvedToValue(getSymbolOfDeclaration(node as ExportAssignment)) :
+                    isAliasResolvedToValue(getSymbolOfDeclaration(node as ExportAssignment), /*excludeTypeOnlyValues*/ true) :
                     true;
         }
         return false;

tests/baselines/reference/exportDeclaration(isolatedmodules=false).js

@@ -31,7 +31,7 @@ Object.defineProperty(exports, "__esModule", { value: true });
 new A();
 //// [c.js]
 "use strict";
-module.exports = A;
+Object.defineProperty(exports, "__esModule", { value: true });
 //// [d.js]
 "use strict";
-module.exports = A;
+Object.defineProperty(exports, "__esModule", { value: true });

tests/baselines/reference/exportDeclaration(isolatedmodules=true).js

@@ -31,7 +31,7 @@ Object.defineProperty(exports, "__esModule", { value: true });
 new A();
 //// [c.js]
 "use strict";
-module.exports = A;
+Object.defineProperty(exports, "__esModule", { value: true });
 //// [d.js]
 "use strict";
-module.exports = A;
+Object.defineProperty(exports, "__esModule", { value: true });

tests/baselines/reference/exportDefault.js

@@ -41,7 +41,6 @@ exports.A = A;
 //// [b.js]
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.default = types;
 //// [c.js]
 "use strict";
 var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {

tests/baselines/reference/importEquals1.js

@@ -40,7 +40,7 @@ var A = /** @class */ (function () {
 exports.A = A;
 //// [b.js]
 "use strict";
-module.exports = types;
+Object.defineProperty(exports, "__esModule", { value: true });
 //// [c.js]
 "use strict";
 var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {

tests/baselines/reference/isolatedModulesExportDeclarationType.js

@@ -0,0 +1,34 @@
+//// [tests/cases/compiler/isolatedModulesExportDeclarationType.ts] ////
+
+//// [type.ts]
+export type T = number;
+
+//// [test1.ts]
+import { T } from "./type";
+const T = 0;      // Error as of #56354
+export default T; // Ok
+
+//// [test2.ts]
+import { T } from "./type";
+type T = number;  // Merge error
+export default T; // Transpiler could assume the alias resolves to a value?
+
+//// [test3.ts]
+import { T } from "./type";
+export default T; // Error
+
+
+//// [type.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//// [test1.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var T = 0; // Error as of #56354
+exports.default = T; // Ok
+//// [test2.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//// [test3.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

tests/cases/compiler/isolatedModulesExportDeclarationType.ts

@@ -1,5 +1,4 @@
 // @isolatedModules: true
-// @noEmit: true
 // @noTypesAndSymbols: true
 
 // @Filename: /type.ts