Eliminate intentional conversion from Smi to Int32 in HMul

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index ce3816e865bf06fdf19c59d0c2180a6f2f503379..494a96386e15e165ae517734b283b13337ce594b 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -397,6 +397,18 @@ bool HValue::CheckUsesForFlag(Flag f) {
 }
 
 
+bool HValue::CheckUsesForFlag(Flag f, HValue** value) {
+  for (HUseIterator it(uses()); !it.Done(); it.Advance()) {
+    if (it.value()->IsSimulate()) continue;
+    if (!it.value()->CheckFlag(f)) {
+      *value = it.value();
+      return false;
+    }
+  }
+  return true;
+}
+
+
 bool HValue::HasAtLeastOneUseWithFlagAndNoneWithout(Flag f) {
   bool return_value = false;
   for (HUseIterator it(uses()); !it.Done(); it.Advance()) {