Handle import types in serializeType (#24701)

src/compiler/transformers/ts.ts

@@ -1910,6 +1910,7 @@ namespace ts {
                 case SyntaxKind.TypeLiteral:
                 case SyntaxKind.AnyKeyword:
                 case SyntaxKind.ThisType:
+                case SyntaxKind.ImportType:
                     break;
 
                 default:

tests/baselines/reference/metadataImportType.errors.txt

@@ -0,0 +1,13 @@
+tests/cases/compiler/metadataImportType.ts(2,6): error TS2304: Cannot find name 'test'.
+tests/cases/compiler/metadataImportType.ts(3,8): error TS2307: Cannot find module './b'.
+
+
+==== tests/cases/compiler/metadataImportType.ts (2 errors) ====
+    export class A {
+        @test
+         ~~~~
+!!! error TS2304: Cannot find name 'test'.
+        b: import('./b').B
+           ~~~~~~~~~~~~~~~
+!!! error TS2307: Cannot find module './b'.
+    }

tests/baselines/reference/metadataImportType.js

@@ -0,0 +1,28 @@
+//// [metadataImportType.ts]
+export class A {
+    @test
+    b: import('./b').B
+}
+
+//// [metadataImportType.js]
+"use strict";
+var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
+    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
+    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
+    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+    return c > 3 && r && Object.defineProperty(target, key, r), r;
+};
+var __metadata = (this && this.__metadata) || function (k, v) {
+    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
+};
+exports.__esModule = true;
+var A = /** @class */ (function () {
+    function A() {
+    }
+    __decorate([
+        test,
+        __metadata("design:type", Object)
+    ], A.prototype, "b");
+    return A;
+}());
+exports.A = A;

tests/baselines/reference/metadataImportType.symbols

@@ -0,0 +1,8 @@
+=== tests/cases/compiler/metadataImportType.ts ===
+export class A {
+>A : Symbol(A, Decl(metadataImportType.ts, 0, 0))
+
+    @test
+    b: import('./b').B
+>b : Symbol(A.b, Decl(metadataImportType.ts, 0, 16))
+}

tests/baselines/reference/metadataImportType.types

@@ -0,0 +1,11 @@
+=== tests/cases/compiler/metadataImportType.ts ===
+export class A {
+>A : A
+
+    @test
+>test : any
+
+    b: import('./b').B
+>b : any
+>B : No type information available!
+}

tests/cases/compiler/metadataImportType.ts

@@ -0,0 +1,6 @@
+// @experimentalDecorators: true
+// @emitDecoratorMetadata: true
+export class A {
+    @test
+    b: import('./b').B
+}