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

runtime/vm/benchmark_test.h

Index: runtime/vm/benchmark_test.h
diff --git a/runtime/vm/benchmark_test.h b/runtime/vm/benchmark_test.h
index d3569b04453ac57488efb28131a82c27beb2ef73..928537342bbb0667bd6d0ea311100c18f4b179df 100644
--- a/runtime/vm/benchmark_test.h
+++ b/runtime/vm/benchmark_test.h
@@ -26,7 +26,7 @@ extern const uint8_t* vm_snapshot_data;
 extern const uint8_t* vm_snapshot_instructions;
 extern const uint8_t* core_isolate_snapshot_data;
 extern const uint8_t* core_isolate_snapshot_instructions;
-}
+}  // namespace bin
 
 // The BENCHMARK macros are used for benchmarking a specific functionality
 // of the VM.
@@ -59,7 +59,6 @@ inline Dart_Handle NewString(const char* str) {
   return Dart_NewStringFromCString(str);
 }
 
-
 class Benchmark {
  public:
   typedef void(RunEntry)(Benchmark* benchmark);
@@ -111,7 +110,6 @@ class Benchmark {
   DISALLOW_COPY_AND_ASSIGN(Benchmark);
 };
 
-
 class BenchmarkIsolateScope {
  public:
   explicit BenchmarkIsolateScope(Benchmark* benchmark) : benchmark_(benchmark) {