Introduce IsUndefined(Isolate*) and IsTheHole(Isolate*)

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 726c077d678905d4c73946c339dcb7fb6334bf5e..b5ccde7f78ba782a91a4d868c6f054fcb0ec9d86 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -2863,7 +2863,7 @@ void BinaryOpICWithAllocationSiteStub::Generate(MacroAssembler* masm) {
   // Load a2 with the allocation site. We stick an undefined dummy value here
   // and replace it with the real allocation site later when we instantiate this
   // stub in BinaryOpICWithAllocationSiteStub::GetCodeCopyFromTemplate().
-  __ li(a2, handle(isolate()->heap()->undefined_value()));
+  __ li(a2, isolate()->factory()->undefined_value());
 
   // Make sure that we actually patched the allocation site.
   if (FLAG_debug_code) {