[turbofan] Frame elision for code stubs

src/globals.h

Index: src/globals.h
diff --git a/src/globals.h b/src/globals.h
index a2fd860bbc1dfe78f6b5619bfa1a5f8ea76dd628..692d735ff8af7c5ed3e4ab7a82e22df23afed36b 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -131,6 +131,12 @@ const int kRegisterSize  = kPointerSize;
 const int kPCOnStackSize = kRegisterSize;
 const int kFPOnStackSize = kRegisterSize;
 
+#if V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_IA32
+const int kElidedFrameSlots = kPCOnStackSize / kPointerSize;
+#else
+const int kElidedFrameSlots = 0;
+#endif
+
 const int kDoubleSizeLog2 = 3;
 
 #if V8_HOST_ARCH_64_BIT