local-symbolizer: Parse Windows paths.

They contained colons in the filename, which broke the parsing logic.

Bug: 161203839
Change-Id: Id4edf76b896a86fb808680883156c8aca0190a2d
diff --git a/gn/perfetto_unittests.gni b/gn/perfetto_unittests.gni
index aae3085..41fcd00 100644
--- a/gn/perfetto_unittests.gni
+++ b/gn/perfetto_unittests.gni
@@ -21,6 +21,7 @@
   "src/protozero:unittests",
   "src/tracing/core:unittests",
   "src/profiling:unittests",
+  "src/profiling/symbolizer:unittests",
 ]
 
 if (enable_perfetto_ipc) {