Implemented inline of String charAton x86.
Implemented inline of String charAton x86.

Change-Id: I5899d5169096adf9b2563a7160c60d05e2ab3e9d

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst