X64 Crankshaft: Add inline one-element cache for Instanceof.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
===================================================================
--- src/x64/lithium-x64.cc	(revision 7084)
+++ src/x64/lithium-x64.cc	(working copy)
@@ -1156,7 +1156,8 @@
 LInstruction* LChunkBuilder::DoInstanceOfKnownGlobal(
     HInstanceOfKnownGlobal* instr) {
   LInstanceOfKnownGlobal* result =
-      new LInstanceOfKnownGlobal(UseFixed(instr->value(), rax));
+      new LInstanceOfKnownGlobal(UseFixed(instr->value(), rax),
+                                 FixedTemp(rdi));
   return MarkAsCall(DefineFixed(result, rax), instr);
 }