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

runtime/vm/hash_map.h

Index: runtime/vm/hash_map.h
diff --git a/runtime/vm/hash_map.h b/runtime/vm/hash_map.h
index 3bb99649bf0240f62da05fe71193650fc6115c76..4e6b0bc647a97585ae44f68b17b558330166aeaf 100644
--- a/runtime/vm/hash_map.h
+++ b/runtime/vm/hash_map.h
@@ -113,7 +113,6 @@ class BaseDirectChainedHashMap : public B {
   Allocator* allocator_;
 };
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::BaseDirectChainedHashMap(
     const BaseDirectChainedHashMap& other)
@@ -131,7 +130,6 @@ BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::BaseDirectChainedHashMap(
   memmove(lists_, other.lists_, lists_size_ * sizeof(HashMapListElement));
 }
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 typename KeyValueTrait::Pair*
 BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Lookup(
@@ -157,7 +155,6 @@ BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Lookup(
   return NULL;
 }
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 typename KeyValueTrait::Value
 BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::LookupValue(
@@ -168,7 +165,6 @@ BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::LookupValue(
   return (pair == NULL) ? kNoValue : KeyValueTrait::ValueOf(*pair);
 }
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 typename KeyValueTrait::Pair*
 BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Iterator::Next() {
@@ -203,7 +199,6 @@ BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Iterator::Next() {
   return NULL;
 }
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 void BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Resize(
     intptr_t new_size) {
@@ -253,7 +248,6 @@ void BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Resize(
   allocator_->template Free<HashMapListElement>(old_array, old_size);
 }
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 void BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::ResizeLists(
     intptr_t new_size) {
@@ -279,7 +273,6 @@ void BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::ResizeLists(
   allocator_->template Free<HashMapListElement>(old_lists, old_size);
 }
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 void BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Insert(
     typename KeyValueTrait::Pair kv) {
@@ -311,7 +304,6 @@ void BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Insert(
   }
 }
 
-
 template <typename KeyValueTrait, typename B, typename Allocator>
 bool BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Remove(
     typename KeyValueTrait::Key key) {
@@ -373,7 +365,6 @@ bool BaseDirectChainedHashMap<KeyValueTrait, B, Allocator>::Remove(
   return true;
 }
 
-
 template <typename KeyValueTrait>
 class DirectChainedHashMap
     : public BaseDirectChainedHashMap<KeyValueTrait, ValueObject> {
@@ -387,7 +378,6 @@ class DirectChainedHashMap
             ASSERT_NOTNULL(zone)) {}
 };
 
-
 template <typename KeyValueTrait>
 class MallocDirectChainedHashMap
     : public BaseDirectChainedHashMap<KeyValueTrait, EmptyBase, Malloc> {
@@ -396,7 +386,6 @@ class MallocDirectChainedHashMap
       : BaseDirectChainedHashMap<KeyValueTrait, EmptyBase, Malloc>(NULL) {}
 };
 
-
 template <typename T>
 class PointerKeyValueTrait {
  public:
@@ -413,7 +402,6 @@ class PointerKeyValueTrait {
   static inline bool IsKeyEqual(Pair kv, Key key) { return kv->Equals(key); }
 };
 
-
 template <typename T>
 class NumbersKeyValueTrait {
  public:
@@ -427,7 +415,6 @@ class NumbersKeyValueTrait {
   static inline bool IsKeyEqual(Pair kv, Key key) { return kv.first() == key; }
 };
 
-
 template <typename K, typename V>
 class RawPointerKeyValueTrait {
  public: