Fix warning in non-assert build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182443 91177308-0d34-0410-b5e6-96231b3b80d8
s/u_int32_t/uint32_t/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182444 91177308-0d34-0410-b5e6-96231b3b80d8