c-common.h, [...]: Rename genrtl_decl_cleanup to genrtl_cleanup_stmt.

c-common.h, [...]: Rename genrtl_decl_cleanup to genrtl_cleanup_stmt.

	* c-common.h, c-semantics.c: Rename genrtl_decl_cleanup to
	genrtl_cleanup_stmt.  Correct comment at head of
	genrtl_cleanup_stmt (no such thing as a DECL_CLEANUP).

	* stmt.c (struct nesting): Kill n_function_calls.
	(expand_start_bindings): Don't set
	thisblock->data.block.n_function_calls.
	(expand_end_bindings): Compare function_call_count against 0.
	(expand_cleanups): Kill DONT_DO argument; all callers passed
	NULL_TREE. All callers updated to match.

Co-Authored-By: Zack Weinberg <zack@codesourcery.com>
From-SVN: r65869