Fix remaining uses of lookupConstructor.

pkg/compiler/lib/src/resolution/members.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 resolution;
 
 abstract class TreeElements {
   AnalyzableElement get analyzedElement;
   Iterable<Node> get superUses;
 
@@ skipping 4798 matching lines @@
       registry.registerThrowRuntimeError();
     }
     if (inConstContext) {
       compiler.reportError(diagnosticNode, kind, arguments);
     } else {
       compiler.reportWarning(diagnosticNode, kind, arguments);
     }
     return new ErroneousElementX(kind, arguments, targetName, enclosing);
   }
 
-  Selector createConstructorSelector(String constructorName) {
-    return constructorName == ''
-        ? new Selector.callDefaultConstructor(
-            resolver.enclosingElement.library)
-        : new Selector.callConstructor(
-            constructorName,
-            resolver.enclosingElement.library);
-  }
-
   FunctionElement resolveConstructor(ClassElement cls,
                                      Node diagnosticNode,
                                      String constructorName) {
     cls.ensureResolved(compiler);
     Element result = cls.lookupConstructor(constructorName);
     if (result == null) {
       String fullConstructorName = Elements.constructorNameForDiagnostics(
               cls.name,
               constructorName);
       return failOrReturnErroneousElement(
@@ skipping 204 matching lines @@
 }
 
 /// The result for the resolution of the `assert` method.
 class AssertResult implements ResolutionResult {
   const AssertResult();
 
   Element get element => null;
 
   String toString() => 'AssertResult()';
 }