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

runtime/vm/runtime_entry.h

Index: runtime/vm/runtime_entry.h
diff --git a/runtime/vm/runtime_entry.h b/runtime/vm/runtime_entry.h
index 12209996dfaf131c3b46798e76e5fe63b9c0ef6c..0eea4fb76231748e29bccfa865e45a1abdfb20ae 100644
--- a/runtime/vm/runtime_entry.h
+++ b/runtime/vm/runtime_entry.h
@@ -140,12 +140,10 @@ class RuntimeEntry : public ValueObject {
   extern const RuntimeEntry k##name##RuntimeEntry;                             \
   extern "C" type DLRT_##name(__VA_ARGS__);
 
-
 // Declare all runtime functions here.
 RUNTIME_ENTRY_LIST(DECLARE_RUNTIME_ENTRY)
 LEAF_RUNTIME_ENTRY_LIST(DECLARE_LEAF_RUNTIME_ENTRY)
 
-
 uword RuntimeEntry::AddressFromId(RuntimeFunctionId id) {
   switch (id) {
 #define DEFINE_RUNTIME_CASE(name)                                              \
@@ -165,7 +163,6 @@ uword RuntimeEntry::AddressFromId(RuntimeFunctionId id) {
   return 0;
 }
 
-
 RuntimeFunctionId RuntimeEntry::RuntimeFunctionIdFromAddress(uword address) {
 #define CHECK_RUNTIME_ADDRESS(name)                                            \
   if (address == k##name##RuntimeEntry.GetEntryPoint()) return k##name##Id;