[beta][ddc] Fix incorrect debugger information on record types.

Closes: #54609
Cherry-pick: https://dart-review.googlesource.com/c/sdk/+/345825
Cherry-pick-request: TBA
Change-Id: I42f0a22c99df5e15cc52aa2008c113ac94017080
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/348186
Commit-Queue: Kevin Chisholm <[email protected]>
Reviewed-by: Sigmund Cherem <[email protected]>

Author: Anna Gringauze

pkg/dev_compiler/test/expression_compiler/runtime_debugger_api_test.dart

@@ -350,21 +350,7 @@ void runSharedTests(
             'runtimeKind': 'list',
             'length': 3,
           });
-      // Old type system incorrectly returns 'dart:_interceptors|List<int>'
-    }, skip: !setup.canaryFeatures);
-
-    test('getObjectMetadata (List) (old types)', () async {
-      await driver.checkRuntimeInFrame(
-          breakpointId: 'BP',
-          expression: 'dart.getObjectMetadata(list)',
-          expectedResult: {
-            'className': 'List<int>',
-            'libraryId': 'dart:_interceptors',
-            'runtimeKind': 'list',
-            'length': 3,
-          });
-      // Old type system incorrectly returns 'dart:_interceptors|List<int>'
-    }, skip: setup.canaryFeatures);
+    });
 
     test('getObjectMetadata (Map)', () async {
       await driver.checkRuntimeInFrame(
@@ -538,15 +524,33 @@ void runSharedTests(
     });
 
     test('getObjectMetadata (Record type)', () async {
+      var typeName = await driver.evaluateDartExpressionInFrame(
+        breakpointId: 'BP',
+        expression: 'recordType.toString()',
+      );
+      expect(typeName, '(int, int, {String name})');
+
       await driver.checkRuntimeInFrame(
           breakpointId: 'BP',
           expression: 'dart.getObjectMetadata(recordType)',
           expectedResult: {
-            'className': 'RecordType',
-            'libraryId': 'dart:_runtime',
+            'className': 'Type',
+            'libraryId': 'dart:core',
             'runtimeKind': 'recordType',
             'length': 3,
           });
+
+      await driver.checkInFrame(
+        breakpointId: 'BP',
+        expression: 'record is Record',
+        expectedResult: 'true',
+      );
+
+      await driver.checkInFrame(
+        breakpointId: 'BP',
+        expression: 'recordType is Type',
+        expectedResult: 'true',
+      );
     });
 
     test('getObjectFieldNames (object)', () async {

sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/debugger.dart

@@ -316,8 +316,8 @@ Object getObjectMetadata(@notNull Object object) {
     if (_isRecordType(object)) {
       var elements = _recordTypeElementTypes(object);
       var length = _get(elements, 'length');
-      _set(result, 'libraryId', 'dart:_runtime');
-      _set(result, 'className', 'RecordType');
+      _set(result, 'libraryId', 'dart:core');
+      _set(result, 'className', 'Type');
       _set(result, 'runtimeKind', RuntimeObjectKind.recordType);
       _set(result, 'length', length);
     } else {