[PATCH] Support for separate debug info files in asan symbolize script

[Alexey Samsonov]

I think that adding support for standalone debug info to asan_symbolize.py is not an option. This logic is already implemented in the symbolization tools, if you want them to work with custom sysroot (so that debug versions of binaries could be found at /path/to/my/sysroot/usr/lib/debug), just add the --sysroot flag to the tools. I can review and submit this kind of patch to llvm-symbolizer tool.

http://reviews.llvm.org/D4902