Make set_drops_artifact_from_ir non-const.

Setters should be non-const but set_drops_artifact_from_ir isn't.
This patch fixes this.

This reason this didn't cause a compilation failure is that const
shared_ptr<X> is equivalent to X *const, not const X*.

Note that resolving the apparent const-safety issue will require
std::experimental::propagate_const or similar.

	* include/abg-suppression.h
	(suppression_base::set_drops_artifact_from_ir):
	Drop const qualifier.
	* src/abg-suppression.cc
	(suppression_base::set_drops_artifact_from_ir):
	Drop const qualifier.

Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Giuliano Procida <gprocida@google.com>
2 files changed