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

runtime/vm/weak_table.cc

Index: runtime/vm/weak_table.cc
diff --git a/runtime/vm/weak_table.cc b/runtime/vm/weak_table.cc
index a9e8c11be4a27fe84b66f00880fe312bcbda77d2..17acba46b903985f4abf4d37599533b5b8385595 100644
--- a/runtime/vm/weak_table.cc
+++ b/runtime/vm/weak_table.cc
@@ -29,7 +29,6 @@ intptr_t WeakTable::SizeFor(intptr_t count, intptr_t size) {
   return result;
 }
 
-
 void WeakTable::SetValue(RawObject* key, intptr_t val) {
   intptr_t mask = size() - 1;
   intptr_t idx = Hash(key) & mask;
@@ -75,7 +74,6 @@ void WeakTable::SetValue(RawObject* key, intptr_t val) {
   }
 }
 
-
 void WeakTable::Reset() {
   intptr_t* old_data = data_;
   used_ = 0;
@@ -85,7 +83,6 @@ void WeakTable::Reset() {
   free(old_data);
 }
 
-
 void WeakTable::Rehash() {
   intptr_t old_size = size();
   intptr_t* old_data = data_;