Convert UnaryOpStub to a HydrogenCodeStub

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 f222c2981f2e2bd3cca7eeddbf76dcbcf32592c1..9428245e7bc37714bf5c64111e408080a77c84b8 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -2032,6 +2032,18 @@ LInstruction* LChunkBuilder::DoCheckNonSmi(HCheckNonSmi* instr) {
 }
 
 
+LInstruction* LChunkBuilder::DoCheckSmi(HCheckSmi* instr) {
+  LOperand* value = UseRegisterAtStart(instr->value());
+  return AssignEnvironment(new(zone()) LCheckSmi(value));
+}
+
+
+LInstruction* LChunkBuilder::DoIsNumberAndBranch(HIsNumberAndBranch* instr) {
+  return new(zone())
+    LIsNumberAndBranch(UseRegisterOrConstantAtStart(instr->value()));
+}
+
+
 LInstruction* LChunkBuilder::DoCheckInstanceType(HCheckInstanceType* instr) {
   LOperand* value = UseRegisterAtStart(instr->value());
   LInstruction* result = new(zone()) LCheckInstanceType(value);