Change signature of lookupConstructor to only require a name.

pkg/compiler/lib/src/compiler.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.
 
 part of dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 902 matching lines @@
 
   /// A customizable filter that is applied to enqueued work items.
   QueueFilter enqueuerFilter = new QueueFilter();
 
   static const String MAIN = 'main';
   static const String CALL_OPERATOR_NAME = 'call';
   static const String NO_SUCH_METHOD = 'noSuchMethod';
   static const int NO_SUCH_METHOD_ARG_COUNT = 1;
   static const String CREATE_INVOCATION_MIRROR =
       'createInvocationMirror';
+  static const String FROM_ENVIRONMENT = 'fromEnvironment';
 
   static const String RUNTIME_TYPE = 'runtimeType';
 
   static const String UNDETERMINED_BUILD_ID =
       "build number could not be determined";
 
   final Selector iteratorSelector =
       new Selector.getter('iterator', null);
   final Selector currentSelector =
       new Selector.getter('current', null);
   final Selector moveNextSelector =
       new Selector.call('moveNext', null, 0);
   final Selector noSuchMethodSelector = new Selector.call(
       Compiler.NO_SUCH_METHOD, null, Compiler.NO_SUCH_METHOD_ARG_COUNT);
   final Selector symbolValidatedConstructorSelector = new Selector.call(
       'validated', null, 1);
-  final Selector fromEnvironmentSelector = new Selector.callConstructor(
-      'fromEnvironment', null, 2);
 
   bool enabledNoSuchMethod = false;
   bool enabledRuntimeType = false;
   bool enabledFunctionApply = false;
   bool enabledInvokeOn = false;
   bool hasIsolateSupport = false;
 
   Stopwatch progress;
 
   bool get shouldPrintProgress {
@@ skipping 402 matching lines @@
   }
 
   void onClassResolved(ClassElement cls) {
     if (mirrorSystemClass == cls) {
       mirrorSystemGetNameFunction =
         cls.lookupLocalMember('getName');
     } else if (symbolClass == cls) {
       symbolConstructor = cls.constructors.head;
     } else if (symbolImplementationClass == cls) {
       symbolValidatedConstructor = symbolImplementationClass.lookupConstructor(
-          symbolValidatedConstructorSelector);
+          symbolValidatedConstructorSelector.name);
     } else if (mirrorsUsedClass == cls) {
       mirrorsUsedConstructor = cls.constructors.head;
     } else if (intClass == cls) {
-      intEnvironment = intClass.lookupConstructor(fromEnvironmentSelector);
+      intEnvironment = intClass.lookupConstructor(FROM_ENVIRONMENT);
     } else if (stringClass == cls) {
       stringEnvironment =
-          stringClass.lookupConstructor(fromEnvironmentSelector);
+          stringClass.lookupConstructor(FROM_ENVIRONMENT);
     } else if (boolClass == cls) {
-      boolEnvironment = boolClass.lookupConstructor(fromEnvironmentSelector);
+      boolEnvironment =
+          boolClass.lookupConstructor(FROM_ENVIRONMENT);
     }
   }
 
   void initializeCoreClasses() {
     final List missingCoreClasses = [];
     ClassElement lookupCoreClass(String name) {
       ClassElement result = coreLibrary.find(name);
       if (result == null) {
         missingCoreClasses.add(name);
       }
@@ skipping 17 matching lines @@
       internalError(
           coreLibrary,
           'dart:core library does not contain required classes: '
           '$missingCoreClasses');
     }
   }
 
   Element _unnamedListConstructor;
   Element get unnamedListConstructor {
     if (_unnamedListConstructor != null) return _unnamedListConstructor;
-    Selector callConstructor = new Selector.callConstructor(
-        "", listClass.library);
-    return _unnamedListConstructor =
-        listClass.lookupConstructor(callConstructor);
+    return _unnamedListConstructor = listClass.lookupDefaultConstructor();
   }
 
   Element _filledListConstructor;
   Element get filledListConstructor {
     if (_filledListConstructor != null) return _filledListConstructor;
-    Selector callConstructor = new Selector.callConstructor(
-        "filled", listClass.library);
-    return _filledListConstructor =
-        listClass.lookupConstructor(callConstructor);
+    return _filledListConstructor = listClass.lookupConstructor("filled");
   }
 
   /**
    * Get an [Uri] pointing to a patch for the dart: library with
    * the given path. Returns null if there is no patch.
    */
   Uri resolvePatchUri(String dartLibraryPath);
 
   Future runCompiler(Uri uri) {
     // TODO(ahe): This prevents memory leaks when invoking the compiler
@@ skipping 955 matching lines @@
   InterfaceType get nullType => nullClass.computeType(compiler);
 
   @override
   InterfaceType get numType => numClass.computeType(compiler);
 
   @override
   InterfaceType get stringType =>  stringClass.computeType(compiler);
 }
 
 typedef void InternalErrorFunction(Spannable location, String message);