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

runtime/vm/growable_array.h

Index: runtime/vm/growable_array.h
diff --git a/runtime/vm/growable_array.h b/runtime/vm/growable_array.h
index b8e27a30f77699b0597ee4804d2c8427f4dbd9d3..4788bffa62415c445c5b3c34794a8f2789a54f1d 100644
--- a/runtime/vm/growable_array.h
+++ b/runtime/vm/growable_array.h
@@ -31,7 +31,6 @@ class GrowableArray : public BaseGrowableArray<T, ValueObject, Zone> {
             ASSERT_NOTNULL(Thread::Current()->zone())) {}
 };
 
-
 template <typename T>
 class ZoneGrowableArray : public BaseGrowableArray<T, ZoneAllocated, Zone> {
  public:
@@ -47,7 +46,6 @@ class ZoneGrowableArray : public BaseGrowableArray<T, ZoneAllocated, Zone> {
             ASSERT_NOTNULL(Thread::Current()->zone())) {}
 };
 
-
 // T must be a Handle type.
 template <typename T, typename B>
 class BaseGrowableHandlePtrArray : public B {
@@ -77,7 +75,6 @@ class BaseGrowableHandlePtrArray : public B {
   DISALLOW_COPY_AND_ASSIGN(BaseGrowableHandlePtrArray);
 };
 
-
 template <typename T>
 class GrowableHandlePtrArray
     : public BaseGrowableHandlePtrArray<T, ValueObject> {
@@ -86,7 +83,6 @@ class GrowableHandlePtrArray
       : BaseGrowableHandlePtrArray<T, ValueObject>(zone, initial_capacity) {}
 };
 
-
 template <typename T>
 class ZoneGrowableHandlePtrArray
     : public BaseGrowableHandlePtrArray<T, ZoneAllocated> {