Parallel recompilation: fewer handle dereferences and tighter checks.

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index ecdaddb40c7ff9207eff495b0f47b39166c9ac03..6961a0dcec3fe3084b2fa2117dddc83dabb67caf 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -935,7 +935,7 @@ LInstruction* LChunkBuilder::DoGoto(HGoto* instr) {
 LInstruction* LChunkBuilder::DoBranch(HBranch* instr) {
   HValue* value = instr->value();
   if (value->EmitAtUses()) {
-    HBasicBlock* successor = HConstant::cast(value)->ToBoolean()
+    HBasicBlock* successor = HConstant::cast(value)->BooleanValue()
         ? instr->FirstSuccessor()
         : instr->SecondSuccessor();
     return new(zone()) LGoto(successor->block_id());