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

runtime/vm/handles.h

Index: runtime/vm/handles.h
diff --git a/runtime/vm/handles.h b/runtime/vm/handles.h
index b96a3bf88c2dfa5ec483a085ab121efe533c57a4..374181a1363760034312f83e005648e6a0146d6d 100644
--- a/runtime/vm/handles.h
+++ b/runtime/vm/handles.h
@@ -55,7 +55,6 @@ namespace dart {
 //   ....
 // }
 
-
 // Forward declarations.
 class ObjectPointerVisitor;
 class Thread;
@@ -77,7 +76,6 @@ class HandleVisitor {
   DISALLOW_IMPLICIT_CONSTRUCTORS(HandleVisitor);
 };
 
-
 template <int kHandleSizeInWords, int kHandlesPerChunk, int kOffsetOfRawPtr>
 class Handles {
  public:
@@ -239,7 +237,6 @@ class Handles {
   DISALLOW_COPY_AND_ASSIGN(Handles);
 };
 
-
 static const int kVMHandleSizeInWords = 2;
 static const int kVMHandlesPerChunk = 64;
 static const int kOffsetOfRawPtr = kWordSize;
@@ -281,7 +278,6 @@ class VMHandles : public Handles<kVMHandleSizeInWords,
   friend class ApiNativeScope;
 };
 
-
 // The class HandleScope is used to start a new handles scope in the code.
 // It is used as follows:
 // {
@@ -311,7 +307,6 @@ class HandleScope : public StackResource {
 #define HANDLESCOPE(thread)                                                    \
   dart::HandleScope vm_internal_handles_scope_(thread);
 
-
 // The class NoHandleScope is used in critical regions of the virtual machine
 // code where raw dart object pointers are directly manipulated.
 // This class asserts that we do not add code that will allocate new handles