Make it easier to get JS stack crawls from gdb

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/21060002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/isolate.cc

@@ -844,6 +844,11 @@ Handle<JSArray> Isolate::CaptureCurrentStackTrace(
 }
 
 
+void Isolate::PrintStack() {
+  PrintStack(stdout);
+}
+
+
 void Isolate::PrintStack(FILE* out) {
   if (stack_trace_nesting_level_ == 0) {
     stack_trace_nesting_level_++;

src/isolate.h

@@ -737,6 +737,7 @@ class Isolate {
   void PrintStackTrace(FILE* out, char* thread_data);
   void PrintStack(StringStream* accumulator);
   void PrintStack(FILE* out);
+  void PrintStack();
   Handle<String> StackTraceString();
   NO_INLINE(void PushStackTraceAndDie(unsigned int magic,
                                       Object* object,