Rename Type to DartType to avoid conflicts with the class Type in the core library.

tests/compiler/dart2js/type_checker_test.dart

 // Copyright (c) 2011, 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.
 
 #import("../../../lib/compiler/implementation/leg.dart");
 #import("../../../lib/compiler/implementation/elements/elements.dart");
 #import("../../../lib/compiler/implementation/tree/tree.dart");
 #import('../../../lib/compiler/implementation/scanner/scannerlib.dart');
 #import("../../../lib/compiler/implementation/util/util.dart");
 #import("mock_compiler.dart");
@@ skipping 335 matching lines @@
   LibraryElement library = mockLibrary(compiler, script);
   compiler.parseScript(script, library);
   ClassElement foo = library.find(const SourceString("Foo"));
   analyzeIn(foo, "{ int i = this; }", MessageKind.NOT_ASSIGNABLE);
   analyzeIn(foo, "{ Object o = this; }");
   analyzeIn(foo, "{ Foo f = this; }");
 }
 
 testFunctionSubtyping() {
   // Checks that the type (in1 -> out1) is a subtype of (in2 -> out2).
-  bool isSubtype(List<Type> in1, Type out1, List<Type> in2, Type out2) {
+  bool isSubtype(List<DartType> in1, Type out1, List<Type> in2, Type out2) {
     return compiler.types.isSubtype(
-        new FunctionType(out1, new Link<Type>.fromList(in1), null),
-        new FunctionType(out2, new Link<Type>.fromList(in2), null));
+        new FunctionType(out1, new Link<DartType>.fromList(in1), null),
+        new FunctionType(out2, new Link<DartType>.fromList(in2), null));
   }
   Expect.isTrue(isSubtype([], intType, [], intType));
   Expect.isTrue(isSubtype([], intType, [], objectType));
   Expect.isFalse(isSubtype([], intType, [], doubleType));
   Expect.isTrue(isSubtype([intType], intType, [intType], intType));
   Expect.isTrue(isSubtype([objectType], intType, [intType], objectType));
   Expect.isFalse(isSubtype([intType], intType, [doubleType], intType));
   Expect.isFalse(isSubtype([intType], intType, [intType, intType], intType));
   Expect.isFalse(isSubtype([intType, intType], intType, [intType], intType));
 }
@@ skipping 95 matching lines @@
   Node node = listener.popNode();
   classElement.ensureResolved(compiler);
   TreeElements elements = compiler.resolveNodeStatement(node, classElement);
   TypeCheckerVisitor checker = new TypeCheckerVisitor(compiler, elements,
                                                                 types);
   compiler.clearWarnings();
   checker.currentClass = classElement;
   checker.analyze(node);
   compareWarningKinds(text, expectedWarnings, compiler.warnings);
 }