Debugger: ensure that break points are set in code that contain debug break slots.

src/runtime/runtime-debug.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/debug.h"
@@ skipping 439 matching lines @@
   StackFrame::Id id = isolate->debug()->break_frame_id();
   if (id == StackFrame::NO_ID) {
     // If there is no JavaScript stack frame count is 0.
     return Smi::FromInt(0);
   }
 
   for (JavaScriptFrameIterator it(isolate, id); !it.done(); it.Advance()) {
     List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
     it.frame()->Summarize(&frames);
     for (int i = frames.length() - 1; i >= 0; i--) {
-      // Omit functions from native scripts.
-      if (!frames[i].function()->IsFromNativeScript()) n++;
+      // Omit functions from native and extension scripts.
+      if (frames[i].function()->IsSubjectToDebugging()) n++;
     }
   }
   return Smi::FromInt(n);
 }
 
 
 class FrameInspector {
  public:
   FrameInspector(JavaScriptFrame* frame, int inlined_jsframe_index,
                  Isolate* isolate)
@@ skipping 104 matching lines @@
 
 
 // Advances the iterator to the frame that matches the index and returns the
 // inlined frame index, or -1 if not found.  Skips native JS functions.
 int Runtime::FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, int index) {
   int count = -1;
   for (; !it->done(); it->Advance()) {
     List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
     it->frame()->Summarize(&frames);
     for (int i = frames.length() - 1; i >= 0; i--) {
-      // Omit functions from native scripts.
-      if (frames[i].function()->IsFromNativeScript()) continue;
+      // Omit functions from native and extension scripts.
+      if (!frames[i].function()->IsSubjectToDebugging()) continue;
       if (++count == index) return i;
     }
   }
   return -1;
 }
 
 
 // Return an array with frame details
 // args[0]: number: break id
 // args[1]: number: frame index
@@ skipping 2599 matching lines @@
   return Smi::FromInt(isolate->debug()->is_active());
 }
 
 
 RUNTIME_FUNCTION(Runtime_DebugBreakInOptimizedCode) {
   UNIMPLEMENTED();
   return NULL;
 }
 }  // namespace internal
 }  // namespace v8