symbols: add a special case for common splitdebug module naming

symbols.py

@@ -29,6 +29,16 @@ if __name__ == '__main__':
             header = f.readline()
 
         field, system, arch, id, name = header.strip().split(' ')
+        # HACK: Splitdebug binaries are currently named "foo" and "foo.debug".
+        # We need to run `dump_syms` over "foo.debug" to get the most
+        # information. But this lists the modulename as "foo.debug" rather
+        # than "foo".
+        #
+        # So we hardcode the removal of this suffix so that the symbol file
+        # gets placed in a location that `minidump_stackwalk` can find.
+        if name.endswith(".debug"):
+            name = name[:-len(".debug")]
+
         print(f"Installing {name}: {id}", file=sys.stderr)
 
         dst_dir = os.path.join(args.dst, name, id)