clang/test/utils/update_cc_test_checks/mangled_names.test

## Basic test checking that update_cc_test_checks.py works as expected for
## functions with mangled names
# RUN: cp -f %S/Inputs/mangled_names.c %t.c && %update_cc_test_checks -v %t.c
# RUN: diff -u %t.c %S/Inputs/mangled_names.c.expected
## Check that running the script again does not change the result:
# RUN: %update_cc_test_checks -v %t.c
# RUN: diff -u %t.c %S/Inputs/mangled_names.c.expected
## Also try the --function-signature flag
# RUN: %update_cc_test_checks %t.c --function-signature
# RUN: diff -u %t.c %S/Inputs/mangled_names.c.funcsig.expected
## Running it again should implicitly add the function-signature flag due to UTC_ARGS:
# RUN: %update_cc_test_checks %t.c
# RUN: diff -u %t.c %S/Inputs/mangled_names.c.funcsig.expected
## Verify that running without the --function-signature flag removes the -SAME: lines:
## We have to remove the UTC_ARGS comment first:
# RUN: grep -v UTC_ARGS %t.c > %t-no-args.c
# RUN: %update_cc_test_checks %t-no-args.c
# RUN: diff -u %t-no-args.c %S/Inputs/mangled_names.c.expected