clang/test/utils/update_cc_test_checks/c-symbol-mangling.test

## Test that we handle mangled C symbol names correctly in the update script

# RUN: cp %S/Inputs/c-symbol-mangling.c %t-generated.c && %update_cc_test_checks %t-generated.c
# RUN: diff -u %S/Inputs/c-symbol-mangling.c.expected %t-generated.c

## Check that re-running update_cc_test_checks doesn't change the output
# RUN: %update_cc_test_checks %t-generated.c
# RUN: diff -u %S/Inputs/c-symbol-mangling.c.expected %t-generated.c