Fortran: Fix select type regression due to r14-9489 [PR114874]

Fortran: Fix select type regression due to r14-9489 [PR114874]

2024-05-17  Paul Thomas  <pault@gcc.gnu.org>

gcc/fortran
	PR fortran/114874
	* gfortran.h: Add 'assoc_name_inferred' to gfc_namespace.
	* match.cc (gfc_match_select_type): Set 'assoc_name_inferred'
	in select type namespace if the selector has inferred type.
	* primary.cc (gfc_match_varspec): If a select type temporary
	is apparently scalar and a left parenthesis has been detected,
	check the current namespace has 'assoc_name_inferred' set. If
	so, set inferred_type.
	* resolve.cc (resolve_variable): If the namespace of a select
	type temporary is marked with 'assoc_name_inferred' call
	gfc_fixup_inferred_type_refs to ensure references are OK.
	(gfc_fixup_inferred_type_refs): Catch invalid array refs..

gcc/testsuite/
	PR fortran/114874
	* gfortran.dg/pr114874_1.f90: New test for valid code.
	* gfortran.dg/pr114874_2.f90: New test for invalid code.