[builtins] Introduce a proper BUILTIN frame type.

src/isolate.cc

 // Copyright 2012 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/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
@@ skipping 368 matching lines @@
   int frames_seen = 0;
   int sloppy_frames = 0;
   bool encountered_strict_function = false;
   for (StackFrameIterator iter(this); !iter.done() && frames_seen < limit;
        iter.Advance()) {
     StackFrame* frame = iter.frame();
 
     switch (frame->type()) {
       case StackFrame::JAVA_SCRIPT:
       case StackFrame::OPTIMIZED:
-      case StackFrame::INTERPRETED: {
+      case StackFrame::INTERPRETED:
+      case StackFrame::BUILTIN: {
         JavaScriptFrame* js_frame = JavaScriptFrame::cast(frame);
         // Set initial size to the maximum inlining level + 1 for the outermost
         // function.
         List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
         js_frame->Summarize(&frames);
         for (int i = frames.length() - 1; i >= 0; i--) {
           Handle<JSFunction> fun = frames[i].function();
           Handle<Object> recv = frames[i].receiver();
           // Filter out internal frames that we do not want to show.
           if (!IsVisibleInStackTrace(*fun, *caller, &seen_caller)) continue;
@@ skipping 2659 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8