Update V8 to r6101 as required by WebKit r74534

Change-Id: I7f84af8dd732f11898fd644b2c2b1538914cb78d
diff --git a/src/codegen.h b/src/codegen.h
index 66300d6..23b36f0 100644
--- a/src/codegen.h
+++ b/src/codegen.h
@@ -68,6 +68,9 @@
 //   CodeForDoWhileConditionPosition
 //   CodeForSourcePosition
 
+enum InitState { CONST_INIT, NOT_CONST_INIT };
+enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
+
 #if V8_TARGET_ARCH_IA32
 #include "ia32/codegen-ia32.h"
 #elif V8_TARGET_ARCH_X64