Fix ClassMirror.typeArguments handling for dynamic only type arguments

tests/lib/mirrors/generics_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 library test.type_arguments_test;
 
 import 'dart:mirrors';
 
 import 'package:expect/expect.dart';
 
 class A<T> {}
 class B extends A {}            // Same as class B extends A<dynamic>.
 class C extends A<num, int> {}  // Same as class C extends A<dynamic>.
 class D extends A<int> {}
 class E<S> extends A<S> {}
 class F<R> extends A<int> {}
 class G {}
+class H<A,B,C> {}
 
 typeParameters(mirror, parameterNames) {
   Expect.listEquals(parameterNames.map((n) => new Symbol(n)).toList(),
                     mirror.typeVariables.keys.toList());
 }
 
 typeArguments(mirror, argumentMirrors) {
   Expect.listEquals(argumentMirrors,
                     mirror.typeArguments.values.toList());
   if (!mirror.isOriginalDeclaration) {
@@ skipping 37 matching lines @@
   Expect.equals(reflectClass(G), reflectClass(G).originalDeclaration);
 
   // Instantiations.
   typeParameters(reflect(new A<num>()).type, ['T']);
   typeParameters(reflect(new B<num>()).type, []);
   typeParameters(reflect(new C()).type, []);
   typeParameters(reflect(new D()).type, []);
   typeParameters(reflect(new E()).type, ['S']);
   typeParameters(reflect(new F<num>()).type, ['R']);
   typeParameters(reflect(new G()).type, []);
+  typeParameters(reflect(new H()).type, ['A', 'B', 'C']);
 
   var numMirror = reflectClass(num);
+  var dynamicMirror = currentMirrorSystem().dynamicType;
   typeArguments(reflect(new A<num>()).type, [numMirror]);
+  typeArguments(reflect(new A<dynamic>()).type, [dynamicMirror]);
+  typeArguments(reflect(new A()).type, [dynamicMirror]);
   typeArguments(reflect(new B()).type, []);
   typeArguments(reflect(new C()).type, []);
   typeArguments(reflect(new D()).type, []);
   typeArguments(reflect(new E<num>()).type, [numMirror]);
+  typeArguments(reflect(new E<dynamic>()).type, [dynamicMirror]);
+  typeArguments(reflect(new E()).type, [dynamicMirror]);
   typeArguments(reflect(new F<num>()).type, [numMirror]);
+  typeArguments(reflect(new F<dynamic>()).type, [dynamicMirror]);
+  typeArguments(reflect(new F()).type, [dynamicMirror]);
   typeArguments(reflect(new G()).type, []);
+  typeArguments(reflect(new H<dynamic, num, dynamic>()).type,
+      [dynamicMirror, numMirror, dynamicMirror]);
 
   Expect.isFalse(reflect(new A<num>()).type.isOriginalDeclaration);
   Expect.isTrue(reflect(new B()).type.isOriginalDeclaration);
   Expect.isTrue(reflect(new C()).type.isOriginalDeclaration);
   Expect.isTrue(reflect(new D()).type.isOriginalDeclaration);
   Expect.isFalse(reflect(new E<num>()).type.isOriginalDeclaration);
   Expect.isFalse(reflect(new F<num>()).type.isOriginalDeclaration);
   Expect.isTrue(reflect(new G()).type.isOriginalDeclaration);
+  Expect.isFalse(reflect(new H()).type.isOriginalDeclaration);
 
   Expect.equals(reflectClass(A),
                 reflect(new A<num>()).type.originalDeclaration);
   Expect.equals(reflectClass(B),
                 reflect(new B()).type.originalDeclaration);
   Expect.equals(reflectClass(C),
                 reflect(new C()).type.originalDeclaration);
   Expect.equals(reflectClass(D),
                 reflect(new D()).type.originalDeclaration);
   Expect.equals(reflectClass(E),
                 reflect(new E<num>()).type.originalDeclaration);
   Expect.equals(reflectClass(F),
                 reflect(new F<num>()).type.originalDeclaration);
   Expect.equals(reflectClass(G),
                 reflect(new G()).type.originalDeclaration);
+  Expect.equals(reflectClass(H),
+                reflect(new H()).type.originalDeclaration);
 
   Expect.notEquals(reflect(new A<num>()).type,
                    reflect(new A<num>()).type.originalDeclaration);
   Expect.equals(reflect(new B()).type,
                 reflect(new B()).type.originalDeclaration);
   Expect.equals(reflect(new C()).type,
                 reflect(new C()).type.originalDeclaration);
   Expect.equals(reflect(new D()).type,
                 reflect(new D()).type.originalDeclaration);
   Expect.notEquals(reflect(new E<num>()).type,
                    reflect(new E<num>()).type.originalDeclaration);
   Expect.notEquals(reflect(new F<num>()).type,
                    reflect(new F<num>()).type.originalDeclaration);
   Expect.equals(reflect(new G()).type,
                 reflect(new G()).type.originalDeclaration);
+  Expect.notEquals(reflect(new H()).type,
+                   reflect(new H()).type.originalDeclaration);
 
   // Library members are all uninstantaited generics or non-generics.
   currentMirrorSystem().libraries.values.forEach((libraryMirror) {
     libraryMirror.classes.values.forEach((classMirror) {
       // TODO(12282): Deal with generic typedefs.
       if (classMirror is! TypedefMirror) {
         Expect.isTrue(classMirror.isOriginalDeclaration);
         Expect.equals(classMirror, classMirror.originalDeclaration);
       }
     });
   });
 }