dart2js: Pass type information to constructor rather than add later.

pkg/compiler/lib/src/ssa/codegen.dart

Index: pkg/compiler/lib/src/ssa/codegen.dart
diff --git a/pkg/compiler/lib/src/ssa/codegen.dart b/pkg/compiler/lib/src/ssa/codegen.dart
index e9614853658473233443fdc8f25397576fa15e8c..012edd13515cebdf315339a478fab7ae90b23253 100644
--- a/pkg/compiler/lib/src/ssa/codegen.dart
+++ b/pkg/compiler/lib/src/ssa/codegen.dart
@@ -2868,7 +2868,7 @@ class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
         js.Expression receiver = pop();
         js.Expression helper =
             backend.emitter.staticFunctionAccess(helperElement);
-        push(js.js(r'#(#.$builtinTypeInfo && #.$builtinTypeInfo[#])',
+        push(js.js(r'#(#.$ti && #.$ti[#])',
             [helper, receiver, receiver, js.js.number(index)]));
       } else {
         backend.emitter.registerReadTypeVariable(element);