Use CG_TRACE consistently

Change-Id: Icff6aa906b0c470afdc4c632896fa5087eeeffb0
Output record types symbolically in SAL_INFO

Change-Id: I57665f39f9921a11e855d0574f836ef52078660b
Add SAL_INFO tracing for CoreText calls

Change-Id: Ie60e0b64a2d9d8a045cb3c59fc781d6f9b2808a0