[stubs] Introduce LeftShift, SignedRightShift and UnsignedRightShift stubs.

src/code-factory.cc

Index: src/code-factory.cc
diff --git a/src/code-factory.cc b/src/code-factory.cc
index 6166fb3377860bf456cb509e33f8c7072a3faf3f..7727767756781f270652601b35bf8964475bc7ac 100644
--- a/src/code-factory.cc
+++ b/src/code-factory.cc
@@ -240,6 +240,24 @@ Callable CodeFactory::Modulus(Isolate* isolate) {
 }
 
 // static
+Callable CodeFactory::ShiftRight(Isolate* isolate) {
+  ShiftRightStub stub(isolate);
+  return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
+}
+
+// static
+Callable CodeFactory::ShiftRightLogical(Isolate* isolate) {
+  ShiftRightLogicalStub stub(isolate);
+  return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
+}
+
+// static
+Callable CodeFactory::ShiftLeft(Isolate* isolate) {
+  ShiftLeftStub stub(isolate);
+  return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
+}
+
+// static
 Callable CodeFactory::BitwiseAnd(Isolate* isolate) {
   BitwiseAndStub stub(isolate);
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());