A few simple cleanups.

runtime/vm/intermediate_language_x64.cc

Index: runtime/vm/intermediate_language_x64.cc
diff --git a/runtime/vm/intermediate_language_x64.cc b/runtime/vm/intermediate_language_x64.cc
index 054f696c955d98e2362acc6b16eb461c10d19855..5ba8bac292f4e7d1fe1d05e46fd1124645f45720 100644
--- a/runtime/vm/intermediate_language_x64.cc
+++ b/runtime/vm/intermediate_language_x64.cc
@@ -1689,9 +1689,9 @@ void GuardFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 
 LocationSummary* StoreInstanceFieldInstr::MakeLocationSummary() const {
   const intptr_t kNumInputs = 2;
-  const intptr_t num_temps = 0;
+  const intptr_t kNumTemps = 0;
   LocationSummary* summary =
-      new LocationSummary(kNumInputs, num_temps, LocationSummary::kNoCall);
+      new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
   summary->set_in(0, Location::RequiresRegister());
   summary->set_in(1, ShouldEmitStoreBarrier()
                        ? Location::WritableRegister()
@@ -4090,9 +4090,9 @@ LocationSummary* GotoInstr::MakeLocationSummary() const {
 
 
 void GotoInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
-  // Add deoptimization descriptor for deoptimizing instructions
-  // that may be inserted before this instruction.
   if (!compiler->is_optimizing()) {
+    // Add deoptimization descriptor for deoptimizing instructions that may
+    // be inserted before this instruction.
     compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
                                    GetDeoptId(),
                                    0);  // No token position.