Tools: Ignore warnings in generated and third party code.

tools/bazel.rc

@@ -69,7 +69,7 @@ build --copt="-Werror=unused-variable"
 build --copt="-Werror=unused-but-set-variable"
 build --copt="-Werror=switch"
 
-build --copt="-Wconversion"
+build --per_file_copt=^modules/.*\.cc,^cyber/.*\.cc@-Wconversion
 
 # Enable C++14
 build --cxxopt="-std=c++1y"

tools/stat_compile_warnings.py

@@ -37,12 +37,6 @@ try:
         file_path, row, col = (
             matched.group('file'), matched.group('row'), matched.group('col'))
 
-        # Skip generated and third-party sources.
-        if file_path.startswith('bazel-out/'):
-            continue
-        if '/third_party/' in file_path:
-            continue
-
         # Stat.
         warnings_id = '{}-{}-{}'.format(file_path, row, col)
         if warnings_id not in warnings_recorded: