Fix overflow check in mul-i which was missing since r14322

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 9c8d9d881d555f18f90c997406327160d2ba8968..d6710a4fa1f43b9311f416c5e5604c46f4322832 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1451,7 +1451,7 @@ HValue* HSub::Canonicalize() {
 HValue* HMul::Canonicalize() {
   if (IsIdentityOperation(left(), right(), 1)) return left();
   if (IsIdentityOperation(right(), left(), 1)) return right();
-  return HArithmeticBinaryOperation::Canonicalize();
+  return this;
 }