Pass --default-arch flag to external symbolizer. Fix line lengths.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185144 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] Fix an unfortunate typo and disable ptrace interception on Android.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185145 91177308-0d34-0410-b5e6-96231b3b80d8
Demangle names using pluggable internal symbolizer if possible

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185146 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Migrate lit tests to external symbolizer from asan_symbolize.py script

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185148 91177308-0d34-0410-b5e6-96231b3b80d8