Revert "Revert "Upgrade to 5.0.71.48"" DO NOT MERGE

This reverts commit f2e3994fa5148cc3d9946666f0b0596290192b0e,
and updates the x64 makefile properly so it doesn't break that
build.

FPIIM-449

Change-Id: Ib83e35bfbae6af627451c926a9650ec57c045605
(cherry picked from commit 109988c7ccb6f3fd1a58574fa3dfb88beaef6632)
diff --git a/src/ast/ast-value-factory.h b/src/ast/ast-value-factory.h
index 4ae912e..85e8277 100644
--- a/src/ast/ast-value-factory.h
+++ b/src/ast/ast-value-factory.h
@@ -255,6 +255,7 @@
   F(dot_catch, ".catch")                        \
   F(empty, "")                                  \
   F(eval, "eval")                               \
+  F(function, "function")                       \
   F(get_space, "get ")                          \
   F(let, "let")                                 \
   F(native, "native")                           \
@@ -263,9 +264,11 @@
   F(proto, "__proto__")                         \
   F(prototype, "prototype")                     \
   F(rest_parameter, ".rest_parameter")          \
+  F(return, "return")                           \
   F(set_space, "set ")                          \
   F(this, "this")                               \
   F(this_function, ".this_function")            \
+  F(throw, "throw")                             \
   F(undefined, "undefined")                     \
   F(use_asm, "use asm")                         \
   F(use_strong, "use strong")                   \