Store ResolvedAst on AstElement

pkg/compiler/lib/src/common/codegen.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 dart2js.common.codegen;
 
 import '../closure.dart' show SynthesizedCallMethodElementX;
 import '../common.dart';
 import '../compiler.dart' show Compiler;
 import '../constants/values.dart' show ConstantValue;
@@ skipping 216 matching lines @@
 class CodegenWorkItem extends WorkItem {
   CodegenRegistry registry;
   final ResolvedAst resolvedAst;
 
   factory CodegenWorkItem(Compiler compiler, AstElement element,
       ItemCompilationContext compilationContext) {
     // If this assertion fails, the resolution callbacks of the backend may be
     // missing call of form registry.registerXXX. Alternatively, the code
     // generation could spuriously be adding dependencies on things we know we
     // don't need.
-    assert(invariant(element, compiler.backend.frontend.hasResolvedAst(element),
+    assert(invariant(element, element.hasResolvedAst,
         message: "$element has no resolved ast."));
-    ResolvedAst resolvedAst = compiler.backend.frontend.getResolvedAst(element);
+    ResolvedAst resolvedAst = element.resolvedAst;
     return new CodegenWorkItem.internal(resolvedAst, compilationContext);
   }
 
   CodegenWorkItem.internal(
       ResolvedAst resolvedAst, ItemCompilationContext compilationContext)
       : this.resolvedAst = resolvedAst,
         super(resolvedAst.element, compilationContext);
 
   WorldImpact run(Compiler compiler, CodegenEnqueuer world) {
     if (world.isProcessed(element)) return const WorldImpact();
 
     registry = new CodegenRegistry(compiler, element);
     return compiler.codegen(this, world);
   }
 }