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

runtime/vm/flow_graph_compiler.h

Index: runtime/vm/flow_graph_compiler.h
diff --git a/runtime/vm/flow_graph_compiler.h b/runtime/vm/flow_graph_compiler.h
index 0a7949af78c92d50caccbfdce8545ce91240c137..08fd3062d31ddcad55270b70f5c85f65cf687ac5 100644
--- a/runtime/vm/flow_graph_compiler.h
+++ b/runtime/vm/flow_graph_compiler.h
@@ -23,7 +23,6 @@ template <typename T>
 class GrowableArray;
 class ParsedFunction;
 
-
 class ParallelMoveResolver : public ValueObject {
  public:
   explicit ParallelMoveResolver(FlowGraphCompiler* compiler);
@@ -59,7 +58,6 @@ class ParallelMoveResolver : public ValueObject {
     bool spilled_;
   };
 
-
   bool IsScratchLocation(Location loc);
   intptr_t AllocateScratchRegister(Location::Kind kind,
                                    uword blocked_mask,
@@ -109,7 +107,6 @@ class ParallelMoveResolver : public ValueObject {
   GrowableArray<MoveOperands*> moves_;
 };
 
-
 // Used for describing a deoptimization point after call (lazy deoptimization).
 // For deoptimization before instruction use class CompilerDeoptInfoWithStub.
 class CompilerDeoptInfo : public ZoneAllocated {
@@ -134,7 +131,6 @@ class CompilerDeoptInfo : public ZoneAllocated {
                                 DeoptInfoBuilder* builder,
                                 const Array& deopt_table);
 
-
   // No code needs to be generated.
   virtual void GenerateCode(FlowGraphCompiler* compiler, intptr_t stub_ix) {}
 
@@ -176,7 +172,6 @@ class CompilerDeoptInfo : public ZoneAllocated {
   DISALLOW_COPY_AND_ASSIGN(CompilerDeoptInfo);
 };
 
-
 class CompilerDeoptInfoWithStub : public CompilerDeoptInfo {
  public:
   CompilerDeoptInfoWithStub(intptr_t deopt_id,
@@ -209,7 +204,6 @@ class CompilerDeoptInfoWithStub : public CompilerDeoptInfo {
   DISALLOW_COPY_AND_ASSIGN(CompilerDeoptInfoWithStub);
 };
 
-
 class SlowPathCode : public ZoneAllocated {
  public:
   SlowPathCode() : entry_label_(), exit_label_() {}
@@ -232,7 +226,6 @@ class SlowPathCode : public ZoneAllocated {
   DISALLOW_COPY_AND_ASSIGN(SlowPathCode);
 };
 
-
 class FlowGraphCompiler : public ValueObject {
  private:
   class BlockInfo : public ZoneAllocated {