[asan] Dump test output in case of error in single-threaded mode.
[asan] Dump test output in case of error in single-threaded mode.


git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@253035 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt