Added a fix to the crash log script that allows you to locate and load a...

Added a fix to the crash log script that allows you to locate and load a binary from any location and _then_ do the symbolication. Something like:

(lldb) file /path/to/file.so
(lldb) crashlog crash.log
....

Then if the file.so has already been loaded it will use the one that is already in LLDB without trying to match up the paths.

llvm-svn: 153075