Update V8 to r5295 as required by WebKit r65615

Change-Id: I1d72d4990703e88b7798919c7a53e12ebf76958a
diff --git a/src/x64/assembler-x64.cc b/src/x64/assembler-x64.cc
index d90655b..9ad94ce 100644
--- a/src/x64/assembler-x64.cc
+++ b/src/x64/assembler-x64.cc
@@ -253,7 +253,7 @@
   int32_t disp_value = 0;
   if (mode == 0x80 || is_baseless) {
     // Mode 2 or mode 0 with rbp/r13 as base: Word displacement.
-    disp_value = *reinterpret_cast<const int32_t*>(&operand.buf_[disp_offset]);
+    disp_value = *BitCast<const int32_t*>(&operand.buf_[disp_offset]);
   } else if (mode == 0x40) {
     // Mode 1: Byte displacement.
     disp_value = static_cast<signed char>(operand.buf_[disp_offset]);