[PATCH] [compiler-rt] Symbolizer refactoring: Unify access to symbolizer tools from POSIXSymbolizer

[Alexey Samsonov]

LGTM. Do you plan to inherit WinSymbolizer from SymbolizerTool?


================
Comment at: lib/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cc:490
@@ +489,3 @@
+  if (path_to_external && path_to_external[0] == '\0') {
+    return nullptr;
+  }
----------------
Restore the comment here (external symbolizer is explicitly disabled).

http://reviews.llvm.org/D8029

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