Make HForeignCode 'isAllocation' property available to optimization

pkg/compiler/lib/src/ssa/optimize.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 ssa;
 
 abstract class OptimizationPhase {
   String get name;
   void visitGraph(HGraph graph);
 }
@@ skipping 1882 matching lines @@
       if (compiler.elementHasCompileTimeError(member)) return;
       memorySet.registerFieldValue(
           member, instruction, instruction.inputs[argumentIndex++]);
     }, includeSuperAndInjectedMembers: true);
     // In case this instruction has as input non-escaping objects, we
     // need to mark these objects as escaping.
     memorySet.killAffectedBy(instruction);
   }
 
   void visitInstruction(HInstruction instruction) {
+    if (instruction.isAllocation()) {
+      memorySet.registerAllocation(instruction);
+    }
     memorySet.killAffectedBy(instruction);
   }
 
   void visitLazyStatic(HLazyStatic instruction) {
     handleStaticLoad(instruction.element, instruction);
   }
 
   void handleStaticLoad(Element element, HInstruction instruction) {
     HInstruction existing = memorySet.lookupFieldValue(element, null);
     if (existing != null) {
@@ skipping 323 matching lines @@
 
     keyedValues.forEach((receiver, values) {
       result.keyedValues[receiver] =
           new Map<HInstruction, HInstruction>.from(values);
     });
 
     result.nonEscapingReceivers.addAll(nonEscapingReceivers);
     return result;
   }
 }