Merge the dart:uri library into dart:core and update the Uri class

tests/compiler/dart2js/call_site_type_inferer_static_test.dart

 // Copyright (c) 2012, 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 "package:expect/expect.dart";
 import "../../../sdk/lib/_internal/compiler/implementation/js_backend/js_backend.dart";
 import "../../../sdk/lib/_internal/compiler/implementation/ssa/ssa.dart";
 
 import 'compiler_helper.dart';
 import 'parser_helper.dart';
 
 void compileAndFind(String code,
                     String functionName,
                     bool disableInlining,
                     check(compiler, element)) {
-  Uri uri = new Uri.fromComponents(scheme: 'source');
+  Uri uri = new Uri(scheme: 'source');
   var compiler = compilerFor(code, uri);
   compiler.disableInlining = disableInlining;
   compiler.runCompiler(uri);
   var fun = findElement(compiler, functionName);
   return check(compiler, fun);
 }
 
 // The 'f' function has an 'if' to make it non-inlinable.
 const String TEST_ONE = r"""
   f(p) { if (p == null) return p; return p; }
@@ skipping 83 matching lines @@
   runTest(TEST_SIX, [(compiler) => HType.NUMBER]);
   runTest(TEST_SEVEN, [subclassOfInterceptor]);
   runTest(TEST_EIGHT, [(compiler) => HType.INTEGER, subclassOfInterceptor]);
   runTest(TEST_NINE, [subclassOfInterceptor, subclassOfInterceptor]);
   runTest(TEST_TEN);
 }
 
 void main() {
   test();
 }