Revert of [runtime] Change JavaScriptFrame::GetFunctions interface.

src/accessors.cc

Index: src/accessors.cc
diff --git a/src/accessors.cc b/src/accessors.cc
index 4aacbcb165c40c9f06840550909ebeb963d53cae..085e00cd44e0320555d3c2d8e16b95b61d96e215 100644
--- a/src/accessors.cc
+++ b/src/accessors.cc
@@ -844,10 +844,10 @@
 static int FindFunctionInFrame(JavaScriptFrame* frame,
                                Handle<JSFunction> function) {
   DisallowHeapAllocation no_allocation;
-  List<FrameSummary> frames(2);
-  frame->Summarize(&frames);
-  for (int i = frames.length() - 1; i >= 0; i--) {
-    if (*frames[i].function() == *function) return i;
+  List<JSFunction*> functions(2);
+  frame->GetFunctions(&functions);
+  for (int i = functions.length() - 1; i >= 0; i--) {
+    if (functions[i] == *function) return i;
   }
   return -1;
 }
@@ -951,16 +951,19 @@
 class FrameFunctionIterator {
  public:
   FrameFunctionIterator(Isolate* isolate, const DisallowHeapAllocation& promise)
-      : isolate_(isolate), frame_iterator_(isolate), frames_(2), index_(0) {
-    GetFrames();
+      : isolate_(isolate),
+        frame_iterator_(isolate),
+        functions_(2),
+        index_(0) {
+    GetFunctions();
   }
   JSFunction* next() {
     while (true) {
-      if (frames_.length() == 0) return NULL;
-      JSFunction* next_function = *frames_[index_].function();
+      if (functions_.length() == 0) return NULL;
+      JSFunction* next_function = functions_[index_];
       index_--;
       if (index_ < 0) {
-        GetFrames();
+        GetFunctions();
       }
       // Skip functions from other origins.
       if (!AllowAccessToFunction(isolate_->context(), next_function)) continue;
@@ -981,18 +984,18 @@
   }
 
  private:
-  void GetFrames() {
-    frames_.Rewind(0);
+  void GetFunctions() {
+    functions_.Rewind(0);
     if (frame_iterator_.done()) return;
     JavaScriptFrame* frame = frame_iterator_.frame();
-    frame->Summarize(&frames_);
-    DCHECK(frames_.length() > 0);
+    frame->GetFunctions(&functions_);
+    DCHECK(functions_.length() > 0);
     frame_iterator_.Advance();
-    index_ = frames_.length() - 1;
+    index_ = functions_.length() - 1;
   }
   Isolate* isolate_;
   JavaScriptFrameIterator frame_iterator_;
-  List<FrameSummary> frames_;
+  List<JSFunction*> functions_;
   int index_;
 };