[stubs] Introduce MultiplyStub.

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index ace4aae6142341012de8eb887ae2c3b1afc8b26c..716e9bdf1696e02cdef4e5c3f04186a3c46151d3 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -112,6 +112,7 @@ namespace internal {
   V(StringLength)                           \
   V(Add)                                    \
   V(Subtract)                               \
+  V(Multiply)                               \
   V(BitwiseAnd)                             \
   V(BitwiseOr)                              \
   V(BitwiseXor)                             \
@@ -689,6 +690,14 @@ class SubtractStub final : public TurboFanCodeStub {
   DEFINE_TURBOFAN_CODE_STUB(Subtract, TurboFanCodeStub);
 };
 
+class MultiplyStub final : public TurboFanCodeStub {
+ public:
+  explicit MultiplyStub(Isolate* isolate) : TurboFanCodeStub(isolate) {}
+
+  DEFINE_CALL_INTERFACE_DESCRIPTOR(BinaryOp);
+  DEFINE_TURBOFAN_CODE_STUB(Multiply, TurboFanCodeStub);
+};
+
 class BitwiseAndStub final : public TurboFanCodeStub {
  public:
   explicit BitwiseAndStub(Isolate* isolate) : TurboFanCodeStub(isolate) {}