Rename $builtinType to $ti

pkg/compiler/lib/src/js_emitter/runtime_type_generator.dart

 // Copyright (c) 2014, 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 dart2js.js_emitter;
 
 // Function signatures used in the generation of runtime type information.
 typedef void FunctionTypeSignatureEmitter(
     Element method, FunctionType methodType);
 
@@ skipping 302 matching lines @@
   }
 
   StubMethod _generateTypeVariableReader(
       ClassElement cls, TypeVariableElement element) {
     jsAst.Name name = namer.nameForReadTypeVariable(element);
     int index = element.index;
     jsAst.Expression computeTypeVariable;
 
     Substitution substitution =
         backend.rti.getSubstitution(cls, element.typeDeclaration);
+    jsAst.Name rtiFieldName = backend.namer.rtiFieldName;
     if (substitution != null) {
-      computeTypeVariable = js(
-          r'#.apply(null, this.$builtinTypeInfo)',
-          backend.rtiEncoder
-              .getSubstitutionCodeForVariable(substitution, index));
+      computeTypeVariable = js(r'#.apply(null, this.#)', [
+        backend.rtiEncoder.getSubstitutionCodeForVariable(substitution, index),
+        rtiFieldName
+      ]);
     } else {
       // TODO(ahe): These can be generated dynamically.
-      computeTypeVariable = js(
-          r'this.$builtinTypeInfo && this.$builtinTypeInfo[#]',
-          js.number(index));
+      computeTypeVariable = js(r'this.# && this.#[#]',
+          [rtiFieldName, rtiFieldName, js.number(index)]);
     }
     jsAst.Expression convertRtiToRuntimeType = backend.emitter
         .staticFunctionAccess(backend.helpers.convertRtiToRuntimeType);
 
     return new StubMethod(
         name,
         js('function () { return #(#) }',
             [convertRtiToRuntimeType, computeTypeVariable]));
   }
 }