Make selector registration in the resolver and code generator more explicit.

lib/compiler/implementation/closure.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.
 
 #library("closureToClassMapper");
 
 #import("elements/elements.dart");
 #import("leg.dart");
 #import("scanner/scannerlib.dart");
 #import("tree/tree.dart");
@@ skipping 385 matching lines @@
     }
     scopeData.boxedLoopVariables = result;
   }
 
   ClosureClassMap globalizeClosure(FunctionExpression node, Element element) {
     SourceString closureName =
         new SourceString(compiler.namer.closureName(element));
     ClassElement globalizedElement = new ClosureClassElement(
         closureName, compiler, element.getCompilationUnit());
     FunctionElement callElement =
-        new FunctionElement.from(compiler.namer.CLOSURE_INVOCATION_NAME,
+        new FunctionElement.from(Namer.CLOSURE_INVOCATION_NAME,
                                  element,
                                  globalizedElement);
     globalizedElement.backendMembers =
         const EmptyLink<Element>().prepend(callElement);
     // The nested function's 'this' is the same as the one for the outer
     // function. It could be [null] if we are inside a static method.
     Element thisElement = closureData.thisElement;
     return new ClosureClassMap(element, globalizedElement,
                                callElement, thisElement);
   }
@@ skipping 88 matching lines @@
   }
 
   visitTryStatement(TryStatement node) {
     // TODO(ngeoffray): implement finer grain state.
     bool oldInTryStatement = inTryStatement;
     inTryStatement = true;
     node.visitChildren(this);
     inTryStatement = oldInTryStatement;
   }
 }