Move the handling of operator[] into the new interceptors.

sdk/lib/_internal/compiler/implementation/ssa/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.
 
 part of ssa;
 
 class SsaCodeGeneratorTask extends CompilerTask {
 
   final JavaScriptBackend backend;
 
@@ skipping 2132 matching lines @@
     int len = node.inputs.length;
     List<js.ArrayElement> elements = <js.ArrayElement>[];
     for (int i = 0; i < len; i++) {
       use(node.inputs[i]);
       elements.add(new js.ArrayElement(i, pop()));
     }
     push(new js.ArrayInitializer(len, elements), node);
   }
 
   void visitIndex(HIndex node) {
-    if (node.isBuiltin(types)) {
-      use(node.inputs[1]);
-      js.Expression receiver = pop();
-      use(node.inputs[2]);
-      push(new js.PropertyAccess(receiver, pop()), node);
-    } else {
-      visitInvokeStatic(node);
-    }
+    use(node.receiver);
+    js.Expression receiver = pop();
+    use(node.index);
+    push(new js.PropertyAccess(receiver, pop()), node);
   }
 
   void visitIndexAssign(HIndexAssign node) {
     if (node.isBuiltin(types)) {
       use(node.inputs[1]);
       js.Expression receiver = pop();
       use(node.inputs[2]);
       js.Expression index = pop();
       use(node.inputs[3]);
       push(new js.Assignment(new js.PropertyAccess(receiver, index), pop()),
@@ skipping 859 matching lines @@
   if (leftType.canBeNull() && rightType.canBeNull()) {
     if (left.isConstantNull() || right.isConstantNull() ||
         (leftType.isPrimitive() && leftType == rightType)) {
       return '==';
     }
     return null;
   } else {
     return '===';
   }
 }