The OpenCL standard specifies the sizes and alignments of various types than other C-family

languages, as well as specifying errno is not set by the math functions. Make the
clang front-end set those appropriately when the OpenCL language option is set.

Patch by Erik Schnetter!



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190296 91177308-0d34-0410-b5e6-96231b3b80d8