Handle int constant

pkg/compiler/lib/src/js_emitter/program_builder/collector.dart

 // Copyright (c) 2015, 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.js_emitter.program_builder;
 
 /**
  * Generates the code for all used classes in the program. Static fields (even
  * in classes) are ignored, since they can be treated as non-class elements.
  *
@@ skipping 54 matching lines @@
       this._interceptorData,
       this._oneShotInterceptorData,
       this._mirrorsData,
       this._closedWorld,
       this._rtiNeededClasses,
       this._generatedCode,
       this._sorter);
 
   Set<ClassElement> computeInterceptorsReferencedFromConstants() {
     Set<ClassElement> classes = new Set<ClassElement>();
-    JavaScriptConstantCompiler handler = _constantHandler;
-    List<ConstantValue> constants = handler.getConstantsForEmission();
+    List<ConstantValue> constants = _worldBuilder.getConstantsForEmission();
     for (ConstantValue constant in constants) {
       if (constant is InterceptorConstantValue) {
         InterceptorConstantValue interceptorConstant = constant;
         classes.add(interceptorConstant.cls);
       }
     }
     return classes;
   }
 
   /**
@@ skipping 80 matching lines @@
             if (needsAccessor &&
                 _mirrorsData.isMemberAccessibleByReflection(member)) {
               _mirrorsData.retainMetadataOfMember(member);
             }
           }, cls: cls);
         }
       }
       typedefsNeededForReflection.forEach(_mirrorsData.retainMetadataOfTypedef);
     }
 
-    JavaScriptConstantCompiler handler = _constantHandler;
     List<ConstantValue> constants =
-        handler.getConstantsForEmission(_emitter.compareConstants);
+        _worldBuilder.getConstantsForEmission(_emitter.compareConstants);
     for (ConstantValue constant in constants) {
       if (_emitter.isConstantInlinedOrAlreadyEmitted(constant)) continue;
 
       if (constant.isList) outputContainsConstantList = true;
 
       OutputUnit constantUnit =
           _deferredLoadTask.outputUnitForConstant(constant);
       if (constantUnit == null) {
         // The back-end introduces some constants, like "InterceptorConstant" or
         // some list constants. They are emitted in the main output-unit.
@@ skipping 167 matching lines @@
   }
 
   void collect() {
     computeNeededDeclarations();
     computeNeededConstants();
     computeNeededStatics();
     computeNeededStaticNonFinalFields();
     computeNeededLibraries();
   }
 }