* function.c: Remove all_functions. Make outer_function_chain

	static.
	(init_function_start): Don't add new function structure to
	all_functions.
	(find_function_data, push_function_context_to,
	pop_function_context_from, put_var_into_stack,
	trampoline_address): Update for changed structure element names.
	(push_function_context_to): Disentangle.
	(free_after_compilation): Also free F.
	(expand_dummy_function_end): Don't free cfun here.
	(put_var_into_stack): Comment why we can't use find_function_data here.
	(fix_lexical_addr, trampoline_address, ): Use find_function_data.
	(mark_function_chain): Split into maybe_mark_struct_function and
	ggc_mark_struct_function.  Export the latter.
	(init_function_once): Mark from cfun and outer_function_chain;
	not all_functions.

	* function.h (struct function): Kill next_global.  Rename next
	to outer.  All users updated to match.
	(all_functions, outer_function_chain): Don't declare.

	* ggc-common.c (ggc_mark_trees): Mark DECL_SAVED_INSNS.
	* integrate.c (output_inline_function): Clear DECL_SAVED_INSNS,
	don't touch f->inlinable, after calling rest_of_compilation.

	* tree.h: Forward-declare struct function.  Prototype
	ggc_mark_struct_function.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45336 138bc75d-0d04-0410-961f-82ee72b054a4

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