Make it easier to get JS stack crawls from gdb

src/isolate.cc

 // Copyright 2012 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 826 matching lines @@
       frames_seen++;
     }
     it.Advance();
   }
 
   stack_trace->set_length(Smi::FromInt(frames_seen));
   return stack_trace;
 }
 
 
+void Isolate::PrintStack() {
+  PrintStack(stdout);
+}
+
+
 void Isolate::PrintStack(FILE* out) {
   if (stack_trace_nesting_level_ == 0) {
     stack_trace_nesting_level_++;
 
     StringAllocator* allocator;
     if (preallocated_message_space_ == NULL) {
       allocator = new HeapStringAllocator();
     } else {
       allocator = preallocated_message_space_;
     }
@@ skipping 1659 matching lines @@
 
 #ifdef DEBUG
 #define ISOLATE_FIELD_OFFSET(type, name, ignored)                       \
 const intptr_t Isolate::name##_debug_offset_ = OFFSET_OF(Isolate, name##_);
 ISOLATE_INIT_LIST(ISOLATE_FIELD_OFFSET)
 ISOLATE_INIT_ARRAY_LIST(ISOLATE_FIELD_OFFSET)
 #undef ISOLATE_FIELD_OFFSET
 #endif
 
 } }  // namespace v8::internal