[Isolates] Convert more static data either to read-only or to per-isolate.

src/liveedit.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1130 matching lines @@
                             LiveEdit::FunctionPatchabilityStatus status) {
   if (!frame->is_java_script()) {
     return false;
   }
   int len = Smi::cast(shared_info_array->length())->value();
   for (int i = 0; i < len; i++) {
     JSValue* wrapper = JSValue::cast(shared_info_array->GetElement(i));
     Handle<SharedFunctionInfo> shared(
         SharedFunctionInfo::cast(wrapper->value()));
 
-    if (frame->code() == shared->code()) {
+    if (frame->LookupCode(Isolate::Current()) == shared->code()) {
       SetElement(result, i, Handle<Smi>(Smi::FromInt(status)));
       return true;
     }
   }
   return false;
 }
 
 
 // Iterates over handler chain and removes all elements that are inside
 // frames being dropped.
@@ skipping 29 matching lines @@
     return "Stack manipulations are not supported in this architecture.";
   }
 
   StackFrame* pre_top_frame = frames[top_frame_index - 1];
   StackFrame* top_frame = frames[top_frame_index];
   StackFrame* bottom_js_frame = frames[bottom_js_frame_index];
 
   ASSERT(bottom_js_frame->is_java_script());
 
   // Check the nature of the top frame.
-  if (pre_top_frame->code()->is_inline_cache_stub() &&
-      pre_top_frame->code()->ic_state() == DEBUG_BREAK) {
+  Code* pre_top_frame_code = pre_top_frame->LookupCode(Isolate::Current());
+  if (pre_top_frame_code->is_inline_cache_stub() &&
+      pre_top_frame_code->ic_state() == DEBUG_BREAK) {
     // OK, we can drop inline cache calls.
     *mode = Debug::FRAME_DROPPED_IN_IC_CALL;
-  } else if (pre_top_frame->code() ==
+  } else if (pre_top_frame_code ==
              Isolate::Current()->debug()->debug_break_slot()) {
     // OK, we can drop debug break slot.
     *mode = Debug::FRAME_DROPPED_IN_DEBUG_SLOT_CALL;
-  } else if (pre_top_frame->code() ==
+  } else if (pre_top_frame_code ==
       Isolate::Current()->builtins()->builtin(
           Builtins::FrameDropper_LiveEdit)) {
     // OK, we can drop our own code.
     *mode = Debug::FRAME_DROPPED_IN_DIRECT_CALL;
-  } else if (pre_top_frame->code()->kind() == Code::STUB &&
-      pre_top_frame->code()->major_key()) {
+  } else if (pre_top_frame_code->kind() == Code::STUB &&
+      pre_top_frame_code->major_key()) {
     // Entry from our unit tests, it's fine, we support this case.
     *mode = Debug::FRAME_DROPPED_IN_DIRECT_CALL;
   } else {
     return "Unknown structure of stack above changing function";
   }
 
   Address unused_stack_top = top_frame->sp();
   Address unused_stack_bottom = bottom_js_frame->fp()
       - Debug::kFrameDropperFrameSize * kPointerSize  // Size of the new frame.
       + kPointerSize;  // Bigger address end is exclusive.
@@ skipping 257 matching lines @@
 
 bool LiveEditFunctionTracker::IsActive() {
   return false;
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 
 } }  // namespace v8::internal