AI 145942: Enable type-precise GC on sapphire builds.
AI 145942: Enable type-precise GC on sapphire builds.

Automated import of CL 145942

xorware/android_build,Hybrid-Power/startsync,xorware/android_build,hagar006/platform_manifest,knone1/platform_manifest,xorware/android_build,xorware/android_build,RR-msm7x30/platform_manifest,ND-3500/platform_manifest,fallouttester/platform_manifest,xorware/android_build,pranav01/platform_manifest,see4ri/lolili