[vm,mirrors] reflectClass: throw ArgumentError for function and record types

TEST=tests/lib/mirrors/reflect_class_test.dart
Fixes #59863

Change-Id: Ic9ab394da9abeb7f793556a4827a496c372576a0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/403620
Reviewed-by: Alexander Aprelev <[email protected]>
Commit-Queue: Alexander Markov <[email protected]>

Author: alexmarkov

runtime/lib/mirrors.cc

@@ -756,15 +756,13 @@ DEFINE_NATIVE_ENTRY(IsolateMirror_loadUri, 0, 1) {
 DEFINE_NATIVE_ENTRY(Mirrors_makeLocalClassMirror, 0, 1) {
   GET_NON_NULL_NATIVE_ARGUMENT(AbstractType, type, arguments->NativeArgAt(0));
   ASSERT(type.IsFinalized());
-  const Class& cls = Class::Handle(
-      type.IsFunctionType()
-          ? IsolateGroup::Current()->object_store()->closure_class()
-          : type.type_class());
-  ASSERT(!cls.IsNull());
-  if (cls.IsDynamicClass() || cls.IsVoidClass() || cls.IsNeverClass()) {
+  if (!type.IsType() || type.IsDynamicType() || type.IsVoidType() ||
+      type.IsNeverType()) {
     Exceptions::ThrowArgumentError(type);
     UNREACHABLE();
   }
+  const Class& cls = Class::Handle(type.type_class());
+  ASSERT(!cls.IsNull());
   return CreateClassMirror(cls, AbstractType::Handle(cls.DeclarationType()),
                            Bool::True(),  // is_declaration
                            Object::null_instance());

tests/lib/mirrors/reflect_class_test.dart

@@ -2,18 +2,18 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// Formatting can break multitests, so don't format them.
-// dart format off
-
 import "dart:mirrors";
 
 import "package:expect/expect.dart";
 
 typedef void FooFunction(int a, double b);
+typedef Rec = (int,);
+typedef Void = void;
 
 main() {
   Expect.throwsArgumentError(() => reflectClass(dynamic));
-  Expect.throwsArgumentError(() => reflectClass(1)); //# 01: compile-time error
-  Expect.throwsArgumentError(() => reflectClass("string")); //# 02: compile-time error
+  Expect.throwsArgumentError(() => reflectClass(Void));
+  Expect.throwsArgumentError(() => reflectClass(Never));
   Expect.throwsArgumentError(() => reflectClass(FooFunction));
+  Expect.throwsArgumentError(() => reflectClass(Rec));
 }