Update the gap resolver to support Smi constants.

src/arm/lithium-gap-resolver-arm.cc

Index: src/arm/lithium-gap-resolver-arm.cc
diff --git a/src/arm/lithium-gap-resolver-arm.cc b/src/arm/lithium-gap-resolver-arm.cc
index 596d58f470c5b10947d24f6f0249648899b5216a..352fbb90ca3c1c5894ffbfd96111be9be964d143 100644
--- a/src/arm/lithium-gap-resolver-arm.cc
+++ b/src/arm/lithium-gap-resolver-arm.cc
@@ -248,7 +248,9 @@ void LGapResolver::EmitMove(int index) {
     LConstantOperand* constant_source = LConstantOperand::cast(source);
     if (destination->IsRegister()) {
       Register dst = cgen_->ToRegister(destination);
-      if (cgen_->IsInteger32(constant_source)) {
+      if (cgen_->IsSmi(constant_source)) {
+        __ mov(dst, Operand(cgen_->ToSmi(constant_source)));
+      } else if (cgen_->IsInteger32(constant_source)) {
         __ mov(dst, Operand(cgen_->ToInteger32(constant_source)));
       } else {
         __ LoadObject(dst, cgen_->ToHandle(constant_source));
@@ -256,7 +258,9 @@ void LGapResolver::EmitMove(int index) {
     } else {
       ASSERT(destination->IsStackSlot());
       ASSERT(!in_cycle_);  // Constant moves happen after all cycles are gone.
-      if (cgen_->IsInteger32(constant_source)) {
+      if (cgen_->IsSmi(constant_source)) {
+        __ mov(kSavedValueRegister, Operand(cgen_->ToSmi(constant_source)));
+      } else if (cgen_->IsInteger32(constant_source)) {
         __ mov(kSavedValueRegister,
                Operand(cgen_->ToInteger32(constant_source)));
       } else {