gdb debugger doesn't get confused on which file it is reading (the one in lib/System or the one in lib/System/{Win32,Unix}) llvm-svn: 19426
* Consolidate implementation for Unix systems into Unix/Signals.cpp * Avoid use of symbolic link to #include platform-specific implementation. llvm-svn: 19153
of "Signals" (cleanup after fatal errors). llvm-svn: 16085