c++/modules: Keep tracking instantiations of static class variable templates [PR122625]

r16-4930-gfd5c057c2d01 ensured that we noted all class-scope variables.
But I also added a clause to 'read_var_def' to skip all class-scope
instantiations, under the mistaken belief that this would be handled in
read_class_def.

But as the testcase shows, read_class_def cannot (and should not)
register instantiations of member variable templates, as when reading
the class it just sees the template declaration.  So this patch
re-enables tracking instantiations of class-scope variable templates.

	PR c++/122625

gcc/cp/ChangeLog:

	* module.cc (trees_in::read_var_def): Also track class-scope
	primary template specialisations.

gcc/testsuite/ChangeLog:

	* g++.dg/modules/inst-7_a.C: New test.
	* g++.dg/modules/inst-7_b.C: New test.

Signed-off-by: Nathaniel Shead <nathanieloshead@gmail.com>
Reviewed-by: Jason Merrill <jason@redhat.com>

0 files changed, 0 insertions, 0 deletions