Build r302621 (#5815) (May 9, 2017 11:31:20 PM)

1. Add noreturn attribute to avoid warnings about missing initialization
   
   Before this change we saw warnings such as:
   
     tools/GPURuntime/GPUJIT.c:1566:3:
     warning: variable 'DevPtr' is used uninitialized whenever switch default is
     taken [-Wsometimes-uninitialized]
       default: (detail/ViewSVN)
   by grosser

Started by upstream project phase2_modules_relay build number 3984
originally caused by:

• Started by upstream project "clang-stage1-configure-RA_build" build number 34,266
  originally caused by:
  • Started by upstream project "clang-stage1-configure-RA" build number 34,071
    originally caused by:
    • Started by an SCM change

This run spent:

• 17 ms waiting;
• 56 min build duration;
• 56 min total from scheduled to completion.