asan: rename the file (it's not 64-bit specific anymore)


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@172518 91177308-0d34-0410-b5e6-96231b3b80d8
asan: fix bugs in the testlib


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@172519 91177308-0d34-0410-b5e6-96231b3b80d8
asan: fix lint warnings


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@172520 91177308-0d34-0410-b5e6-96231b3b80d8