Support intercepted getters, setters and index operations.

pkg/compiler/lib/src/js_backend/codegen/task.dart

Index: pkg/compiler/lib/src/js_backend/codegen/task.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen/task.dart b/pkg/compiler/lib/src/js_backend/codegen/task.dart
index af833c28960e9347ac1868169e0ed2a25dcd15c9..d50f32a088e6d131a98310a8aa3b0acfb714d121 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/task.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/task.dart
@@ -61,8 +61,10 @@ class CspFunctionCompiler implements FunctionCompiler {
   js.Fun compile(CodegenWorkItem work) {
     types = new TypeMaskSystem(compiler);
     AstElement element = work.element;
+    JavaScriptBackend backend = compiler.backend;
     return compiler.withCurrentElement(element, () {
-      if (element.library.isPlatformLibrary) {
+      if (element.library.isPlatformLibrary ||
+          element.library == backend.interceptorsLibrary) {
         compiler.log('Using SSA compiler for platform element $element');
         return fallbackCompiler.compile(work);
       }
@@ -104,6 +106,13 @@ class CspFunctionCompiler implements FunctionCompiler {
     if (cpsNode == null) {
       giveUp('unable to build cps definition of $element');
     }
+    if (element.isInstanceMember && !element.isGenerativeConstructorBody) {
+      Selector selector = new Selector.fromElement(cpsNode.element);
+      if (glue.isInterceptedSelector(selector)) {
+        giveUp('cannot compile methods that need interceptor calling '
+            'convention.');
+      }
+    }
     traceGraph("IR Builder", cpsNode);
     new UnsugarVisitor(glue).rewrite(cpsNode);
     traceGraph("Unsugaring", cpsNode);