tests for inlining between IR and AST functions

sdk/lib/_internal/compiler/implementation/js_backend/backend.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 js_backend;
 
 const VERBOSE_OPTIMIZER_HINTS = false;
 
 class JavaScriptItemCompilationContext extends ItemCompilationContext {
   final Set<HInstruction> boundsChecked = new Set<HInstruction>();
@@ skipping 89 matching lines @@
   Element objectEquals;
 
   ClassElement typeLiteralClass;
   ClassElement mapLiteralClass;
   ClassElement constMapLiteralClass;
   ClassElement typeVariableClass;
 
   ClassElement noSideEffectsClass;
   ClassElement noThrowsClass;
   ClassElement noInlineClass;
+  ClassElement irRepresentationClass;
 
   Element getInterceptorMethod;
   Element interceptedNames;
 
   /**
    * This element is a top-level variable (in generated output) that the
    * compiler initializes to a datastructure used to map from a Type to the
    * interceptor.  See declaration of `mapTypeToInterceptor` in
    * `interceptors.dart`.
    */
@@ skipping 394 matching lines @@
     indexablePrimitiveType = new TypeMask.nonNullSubtype(jsIndexableClass);
     readableArrayType = new TypeMask.nonNullSubclass(jsArrayClass);
     mutableArrayType = new TypeMask.nonNullSubclass(jsMutableArrayClass);
     fixedArrayType = new TypeMask.nonNullExact(jsFixedArrayClass);
     extendableArrayType = new TypeMask.nonNullExact(jsExtendableArrayClass);
     nonNullType = compiler.typesTask.dynamicType.nonNullable();
 
     noSideEffectsClass = compiler.findHelper('NoSideEffects');
     noThrowsClass = compiler.findHelper('NoThrows');
     noInlineClass = compiler.findHelper('NoInline');
+    irRepresentationClass = compiler.findHelper('IrRepresentation');
   }
 
   void validateInterceptorImplementsAllObjectMethods(
       ClassElement interceptorClass) {
     if (interceptorClass == null) return;
     interceptorClass.ensureResolved(compiler);
     compiler.objectClass.forEachMember((_, Element member) {
       if (member.isGenerativeConstructor()) return;
       Element interceptorMember = interceptorClass.lookupMember(member.name);
       // Interceptors must override all Object methods due to calling convention
@@ skipping 1328 matching lines @@
     copy(constant.values);
     copy(constant.protoValue);
     copy(constant);
   }
 
   void visitConstructed(ConstructedConstant constant) {
     copy(constant.fields);
     copy(constant);
   }
 }