dart2js: Merge intercepted names map.

pkg/compiler/lib/src/js_emitter/old_emitter/reflection_data_parser.dart

Index: pkg/compiler/lib/src/js_emitter/old_emitter/reflection_data_parser.dart
diff --git a/pkg/compiler/lib/src/js_emitter/old_emitter/reflection_data_parser.dart b/pkg/compiler/lib/src/js_emitter/old_emitter/reflection_data_parser.dart
index c20a68d91fe92fec7dc94bca531a47a05c80ce06..adedb27a90b186a6466dc6f0a1db54d72e828e58 100644
--- a/pkg/compiler/lib/src/js_emitter/old_emitter/reflection_data_parser.dart
+++ b/pkg/compiler/lib/src/js_emitter/old_emitter/reflection_data_parser.dart
@@ -250,7 +250,10 @@ jsAst.Expression getReflectionDataParser(OldEmitter oldEmitter,
       if (getterStubName) functions.push(getterStubName);
       f.\$stubName = getterStubName;
       f.\$callName = null;
-      if (isIntercepted) #interceptedNames[getterStubName] = true;
+      // Update the interceptedNames map (which only exists if `invokeOn` was
+      // enabled).
+      if (#enabledInvokeOn)
+        if (isIntercepted) #interceptedNames[getterStubName] = 1;
     }
 
     if (#usesMangledNames) {
@@ -280,7 +283,8 @@ jsAst.Expression getReflectionDataParser(OldEmitter oldEmitter,
       }
     }
   }
-''', {'globalFunctions' : globalFunctionsAccess,
+''', {'globalFunctions': globalFunctionsAccess,
+      'enabledInvokeOn': compiler.enabledInvokeOn,
       'interceptedNames': interceptedNamesAccess,
       'usesMangledNames':
           compiler.mirrorsLibrary != null || compiler.enabledFunctionApply,
@@ -289,6 +293,9 @@ jsAst.Expression getReflectionDataParser(OldEmitter oldEmitter,
 
   List<jsAst.Statement> tearOffCode = buildTearOffCode(backend);
 
+  jsAst.ObjectInitializer interceptedNamesSet =
+      oldEmitter.interceptorEmitter.generateInterceptedNamesSet();
+
   jsAst.Statement init = js.statement('''{
   var functionCounter = 0;
   if (!#libraries) #libraries = [];
@@ -297,7 +304,8 @@ jsAst.Expression getReflectionDataParser(OldEmitter oldEmitter,
   if (!#statics) #statics = map();
   if (!#typeInformation) #typeInformation = map(); 
   if (!#globalFunctions) #globalFunctions = map();
-  if (!#interceptedNames) #interceptedNames = map();
+  if (#enabledInvokeOn)
+    if (!#interceptedNames) #interceptedNames = #interceptedNamesSet;
   var libraries = #libraries;
   var mangledNames = #mangledNames;
   var mangledGlobalNames = #mangledGlobalNames;
@@ -349,7 +357,9 @@ jsAst.Expression getReflectionDataParser(OldEmitter oldEmitter,
        'statics': staticsAccess,
        'typeInformation': typeInformationAccess,
        'globalFunctions': globalFunctionsAccess,
+       'enabledInvokeOn': compiler.enabledInvokeOn,
        'interceptedNames': interceptedNamesAccess,
+       'interceptedNamesSet': interceptedNamesSet,
        'notInCspMode': !compiler.useContentSecurityPolicy,
        'needsClassSupport': oldEmitter.needsClassSupport});