clang/test/utils/update_cc_test_checks/check_attrs.test

## Test that CHECK lines are generated as expected without --check-attributes
# RUN: cp %S/Inputs/check-attributes.cpp %t.cpp && %update_cc_test_checks %t.cpp
# RUN: diff -u %S/Inputs/check-attributes.cpp.plain.expected %t.cpp
## Test with --check-attributes flag.
# RUN: cp %S/Inputs/check-attributes.cpp %t.cpp && %update_cc_test_checks %t.cpp --check-attributes
# RUN: diff -u %S/Inputs/check-attributes.cpp.funcattrs.expected %t.cpp
## Check that re-running update_cc_test_checks doesn't change the output
# RUN: %update_cc_test_checks %t.cpp
# RUN: diff -u %S/Inputs/check-attributes.cpp.funcattrs.expected %t.cpp