X64 Crankshaft: Add TypeRecordingBinaryStub to X64

src/x64/macro-assembler-x64.h

Index: src/x64/macro-assembler-x64.h
===================================================================
--- src/x64/macro-assembler-x64.h	(revision 6575)
+++ src/x64/macro-assembler-x64.h	(working copy)
@@ -1458,6 +1458,8 @@
   ASSERT(!src1.is(kScratchRegister));
   ASSERT(!src2.is(kScratchRegister));
   ASSERT(!dst.is(rcx));
+  // dst and src1 can be the same, because the one case that bails out
+  // is a shift by 0, which leaves dst, and therefore src1, unchanged.
   NearLabel result_ok;
   if (src1.is(rcx) || src2.is(rcx)) {
     movq(kScratchRegister, rcx);