ada: Tune warning about assignment just before a raise statement

Tune warning about a possibly ineffective assignment to a formal
parameter that happens just before a raise statement.

The warning is now emitted for parameters of all by-copy types and not
just of scalar types (this gives more warnings), but is suppressed for
aliased parameters (this removes some spurious warnings).

gcc/ada/

	* sem_ch11.adb (Analyze_Raise_Expression): Tune warning condition.
	* libgnat/g-dirope.ads (Open): Remove a potentially inaccurate comment.
	* libgnat/g-dirope.adb (Open): Remove a potentially useless assignment;
	the Dir output parameter should be assigned a null value anyway by the
	preceding call to Free.

0 files changed, 0 insertions, 0 deletions