[llvm] r252118 - [Windows] Symbolize with llvm-symbolizer instead of dbghelp in a self-host

[Joerg Sonnenberger via llvm-commits]

On Thu, Nov 05, 2015 at 01:07:54AM -0000, Reid Kleckner via llvm-commits wrote:
> Author: rnk
> Date: Wed Nov  4 19:07:54 2015
> New Revision: 252118
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=252118&view=rev
> Log:
> [Windows] Symbolize with llvm-symbolizer instead of dbghelp in a self-host
> 
> Summary:
> llvm-symbolizer understands both PDBs and DWARF, so it is more likely to
> succeed at symbolization. If llvm-symbolizer is unavailable, we will
> fall back to dbghelp. This also makes our crash traces more similar
> between Windows and Linux.

This broke the build for all systems without bracktrace since
findModuleAndOffsets is missing in that case.

Joerg