1! Ensure that only argument -Werror is supported.
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3! RUN: not %flang_fc1 -fsyntax-only -Wall %s 2>&1 | FileCheck %s --check-prefix=WRONG
4! RUN: not %flang_fc1 -fsyntax-only -WX %s 2>&1 | FileCheck %s --check-prefix=WRONG
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6! WRONG: Only `-Werror` is supported currently.
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