Sets diagnostic messages that have a specific tag to Warning severity.
--diag_warning option behaves analogously to
--diag_error, except that the compiler sets the diagnostic messages
having the specified tags to warning severity rather than error severity.
A diagnostic message number to set to warning severity. This is the four-digit number,
, with the tool letter prefix, but without the letter suffix indicating the severity.
error, to set all errors that can be downgraded to warnings.
--diag_warning=A1234,error causes message
A1234 and all
downgradable errors to be treated as warnings, providing changing the severity of
A1234 is permitted.