Update V8 to r5318 to fix crashing ARM bugs

Bug: 2947054
Change-Id: I9c7398edb1525477c75ace9d383efaf790d12c51
diff --git a/src/codegen.h b/src/codegen.h
index 353e186..56c175e 100644
--- a/src/codegen.h
+++ b/src/codegen.h
@@ -108,6 +108,7 @@
   F(StringCompare, 2, 1)                                                     \
   F(RegExpExec, 4, 1)                                                        \
   F(RegExpConstructResult, 3, 1)                                             \
+  F(RegExpCloneResult, 1, 1)                                                 \
   F(GetFromCache, 2, 1)                                                      \
   F(NumberToString, 1, 1)                                                    \
   F(SwapElements, 3, 1)                                                      \