[Sparc] Change to let clang know that setjmp and longjmp intrinsics are implemented in the back-end.
[Sparc] Change to let clang know that setjmp and longjmp intrinsics are implemented in the back-end.

Differential Revision: http://reviews.llvm.org/D19798

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@272782 91177308-0d34-0410-b5e6-96231b3b80d8

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