re PR ipa/44563 (GCC uses a lot of RAM when compiling a large numbers of functions)

	PR middle-end/44563 
	* ipa-inline.c: Update doplevel comment. 
	(cgraph_estimate_size_after_inlining): Remove times attribute. 
	(cgraph_mark_inline_edge): Update. 
	(cgraph_mark_inline): Remove. 
	(cgraph_estimate_growth): Update. 
	(cgraph_check_inline_limits): Remove one only argument. 
	(cgraph_edge_badness): Update. 
	(cgraph_decide_recursive_inlining): Update. 
	(cgraph_decide_inlining_of_small_function): Fix handling of tree_can_inline_p 
	and call_stmt_cannot_inline_p. 
	(cgraph_flatten): Likewise. 
	(cgraph_decide_inlining): Update. 
	(cgraph_decide_inlining_incrementally): Fix handling of call_stmt_cannot_inline_p.

From-SVN: r167964