Renamed "symbols" to "internalized strings" throughout the code base,

src/debug.cc

Index: src/debug.cc
diff --git a/src/debug.cc b/src/debug.cc
index 866839d4f501397ea134bf9d978634e26217c7a2..5b0aba7ee5b7a729ad8ce059bdb1f2a6b58e75cd 100644
--- a/src/debug.cc
+++ b/src/debug.cc
@@ -840,7 +840,7 @@ bool Debug::Load() {
   isolate_->set_context(*context);
 
   // Expose the builtins object in the debugger context.
-  Handle<String> key = isolate_->factory()->LookupOneByteSymbol(
+  Handle<String> key = isolate_->factory()->InternalizeOneByteString(
       STATIC_ASCII_VECTOR("builtins"));
   Handle<GlobalObject> global = Handle<GlobalObject>(context->global_object());
   RETURN_IF_EMPTY_HANDLE_VALUE(
@@ -1104,13 +1104,13 @@ bool Debug::CheckBreakPoint(Handle<Object> break_point_object) {
   if (!break_point_object->IsJSObject()) return true;
 
   // Get the function IsBreakPointTriggered (defined in debug-debugger.js).
-  Handle<String> is_break_point_triggered_symbol =
-      factory->LookupOneByteSymbol(
+  Handle<String> is_break_point_triggered_string =
+      factory->InternalizeOneByteString(
           STATIC_ASCII_VECTOR("IsBreakPointTriggered"));
   Handle<JSFunction> check_break_point =
     Handle<JSFunction>(JSFunction::cast(
         debug_context()->global_object()->GetPropertyNoExceptionThrown(
-            *is_break_point_triggered_symbol)));
+            *is_break_point_triggered_string)));
 
   // Get the break id as an object.
   Handle<Object> break_id = factory->NewNumberFromInt(Debug::break_id());
@@ -2431,7 +2431,7 @@ void Debug::ClearMirrorCache() {
   ASSERT(isolate_->context() == *Debug::debug_context());
 
   // Clear the mirror cache.
-  Handle<String> function_name = isolate_->factory()->LookupOneByteSymbol(
+  Handle<String> function_name = isolate_->factory()->InternalizeOneByteString(
       STATIC_ASCII_VECTOR("ClearMirrorCache"));
   Handle<Object> fun(
       Isolate::Current()->global_object()->GetPropertyNoExceptionThrown(
@@ -2560,7 +2560,7 @@ Handle<Object> Debugger::MakeJSObject(Vector<const char> constructor_name,
 
   // Create the execution state object.
   Handle<String> constructor_str =
-      isolate_->factory()->LookupUtf8Symbol(constructor_name);
+      isolate_->factory()->InternalizeUtf8String(constructor_name);
   Handle<Object> constructor(
       isolate_->global_object()->GetPropertyNoExceptionThrown(
           *constructor_str));
@@ -2790,12 +2790,12 @@ void Debugger::OnAfterCompile(Handle<Script> script,
   // script. Make sure that these break points are set.
 
   // Get the function UpdateScriptBreakPoints (defined in debug-debugger.js).
-  Handle<String> update_script_break_points_symbol =
-      isolate_->factory()->LookupOneByteSymbol(
+  Handle<String> update_script_break_points_string =
+      isolate_->factory()->InternalizeOneByteString(
           STATIC_ASCII_VECTOR("UpdateScriptBreakPoints"));
   Handle<Object> update_script_break_points =
       Handle<Object>(debug->debug_context()->global_object()->
-          GetPropertyNoExceptionThrown(*update_script_break_points_symbol));
+          GetPropertyNoExceptionThrown(*update_script_break_points_string));
   if (!update_script_break_points->IsJSFunction()) {
     return;
   }