Fix 32 bit loads of 64 bit direct code pointers

Fixes 64 bit problems for JIT since the JIT code cache isn't always
in the low 2GB.

(cherry picked from commit 0d2ac187be10838c008e6aaa03e5e55014e9087e)

Change-Id: Ifd37d6a86166a91be1b258da7329c888fd82e4b9
3 files changed