VM: Re-format to use at most one newline between functions

runtime/vm/gdb_helpers.cc

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "lib/stacktrace.h"
 #include "vm/object.h"
 #include "vm/stack_frame.h"
 
 namespace dart {
 
 #if !defined(PRODUCT)
 
 DART_EXPORT
 void _printRawObject(RawObject* object) {
   OS::PrintErr("%s\n", Object::Handle(object).ToCString());
 }
 
-
 DART_EXPORT
 Object* _handle(RawObject* object) {
   return &Object::Handle(object);
 }
 
-
 // An utility method for convenient printing of dart stack traces when
 // inside 'gdb'. Note: This function will only work when there is a
 // valid exit frame information. It will not work when a breakpoint is
 // set in dart code and control is got inside 'gdb' without going through
 // the runtime or native transition stub.
 DART_EXPORT
 void _printDartStackTrace() {
   const StackTrace& stacktrace = GetCurrentStackTrace(0);
   OS::PrintErr("=== Current Trace:\n%s===\n", stacktrace.ToCString());
 }
 
-
 // Like _printDartStackTrace, but works in a NoSafepointScope. Use it if you're
 // in the middle of a GC or interested in stub frames.
 DART_EXPORT
 void _printStackTrace() {
   StackFrameIterator frames(StackFrameIterator::kDontValidateFrames,
                             Thread::Current(),
                             StackFrameIterator::kNoCrossThreadIteration);
   StackFrame* frame = frames.NextFrame();
   while (frame != NULL) {
     OS::PrintErr("%s\n", frame->ToCString());
     frame = frames.NextFrame();
   }
 }
 
-
 class PrintObjectPointersVisitor : public ObjectPointerVisitor {
  public:
   PrintObjectPointersVisitor() : ObjectPointerVisitor(Isolate::Current()) {}
 
   void VisitPointers(RawObject** first, RawObject** last) {
     for (RawObject** p = first; p <= last; p++) {
       Object& obj = Object::Handle(*p);
       OS::PrintErr("%p: %s\n", p, obj.ToCString());
     }
   }
 };
 
-
 DART_EXPORT
 void _printStackTraceWithLocals() {
   PrintObjectPointersVisitor visitor;
   StackFrameIterator frames(StackFrameIterator::kDontValidateFrames,
                             Thread::Current(),
                             StackFrameIterator::kNoCrossThreadIteration);
   StackFrame* frame = frames.NextFrame();
   while (frame != NULL) {
     OS::PrintErr("%s\n", frame->ToCString());
     frame->VisitObjectPointers(&visitor);
     frame = frames.NextFrame();
   }
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart