Stop passing library elements to tons of namer functions.

sdk/lib/_internal/compiler/implementation/universe/universe.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 universe;
 
 import '../closure.dart';
 import '../elements/elements.dart';
 import '../dart2jslib.dart';
 import '../tree/tree.dart';
@@ skipping 208 matching lines @@
   bool isIndex() => identical(kind, SelectorKind.INDEX) && argumentCount == 1;
   bool isIndexSet() => identical(kind, SelectorKind.INDEX) && argumentCount == 2;
 
   bool isOperator() => identical(kind, SelectorKind.OPERATOR);
   bool isUnaryOperator() => isOperator() && argumentCount == 0;
   bool isBinaryOperator() => isOperator() && argumentCount == 1;
 
   /** Check whether this is a call to 'assert'. */
   bool isAssert() => isCall() && identical(name.stringValue, "assert");
 
+  /** Check whether this is a closure invocation call. */
+  bool isClosureCall() =>
+      isCall() && identical(name.stringValue, Compiler.CALL_OPERATOR_NAME);
+
   int get hashCode => argumentCount + 1000 * namedArguments.length;
   int get namedArgumentCount => namedArguments.length;
   int get positionalArgumentCount => argumentCount - namedArgumentCount;
   DartType get receiverType => null;
 
   /**
    * The member name for invocation mirrors created from this selector.
    */
   String get invocationMirrorMemberName =>
       isSetter() ? '${name.slowToString()}=' : name.slowToString();
 
   int get invocationMirrorKind {
     const int METHOD = 0;
     const int GETTER = 1;
     const int SETTER = 2;
     int kind = METHOD;
     if (isGetter()) {
       kind = GETTER;
     } else if (isSetter()) {
       kind = SETTER;
     }
     return kind;
   }
 
   bool applies(Element element, Compiler compiler)
       => appliesUntyped(element, compiler);
 
   bool appliesUntyped(Element element, Compiler compiler) {
     if (Elements.isUnresolved(element)) return false;
+    if (name.isPrivate() && library != element.getLibrary()) return false;
     if (element.isForeign(compiler)) return true;
-
     if (element.isSetter()) return isSetter();
     if (element.isGetter()) return isGetter() || isCall();
     if (element.isField()) return isGetter() || isSetter() || isCall();
     if (isGetter()) return true;
     if (isSetter()) return false;
 
     FunctionElement function = element;
     FunctionSignature parameters = function.computeSignature(compiler);
     if (argumentCount > parameters.parameterCount) return false;
     int requiredParameterCount = parameters.requiredParameterCount;
@@ skipping 205 matching lines @@
     ClassElement cls = self;
     if (cls.isSubclassOf(other)) {
       // Resolve an invocation of [element.name] on [self]. If it
       // is found, this selector is a candidate.
       return hasElementIn(self, element) && appliesUntyped(element, compiler);
     }
 
     return false;
   }
 }