Diagnose mismatches between array and scalar new and delete [PR101791].

Diagnose mismatches between array and scalar new and delete [PR101791].

Resolves:
PR middle-end/101791 - missing warning on a mismatch between scalar and array forms of new and delete

gcc/ChangeLog:

	PR middle-end/101791
	* gimple-ssa-warn-access.cc (new_delete_mismatch_p): Use new argument
	to valid_new_delete_pair_p.
	* tree.c (valid_new_delete_pair_p): Add argument.
	* tree.h (valid_new_delete_pair_p): Same.

gcc/testsuite/ChangeLog:

	PR middle-end/101791
	* g++.dg/warn/Wmismatched-new-delete-6.C: New test.
	* g++.dg/warn/Wmismatched-new-delete-7.C: New test.