Make default duplicate and insert methods of summaries abort; fix fallout

Make default duplicate and insert methods of summaries abort; fix fallout

the default duplicate and insert methods of sumaries produce empty
summary that is not useful for anything and makes it easy to introduce
bugs.

This patch makes the default hooks to abort and summaries that do not
need dupicaito/insertion disable the corresponding hooks. I also
implemented missing insertion hook for ipa-sra which forced me to move
analysis out of anonymous namespace.

2020-10-23  Jan Hubicka  <hubicka@ucw.cz>

	* cgraph.h (struct cgraph_node): Make ipa_transforms_to_apply vl_ptr.
	* ipa-inline-analysis.c (initialize_growth_caches): Disable insertion
	and duplication hooks.
	* ipa-inline-transform.c (clone_inlined_nodes): Clear
	ipa_transforms_to_apply.
	(save_inline_function_body): Disable insertion hoook for
	ipa_saved_clone_sources.
	* ipa-prop.c (ipcp_transformation_initialize): Disable insertion hook.
	* ipa-prop.h (ipa_node_params_t): Disable insertion hook.
	* ipa-reference.c (propagate): Disable insertion hoook.
	* ipa-sra.c (ipa_sra_summarize_function): Move out of anonymous
	namespace.
	(ipa_sra_function_summaries::insert): New virtual function.
	* passes.c (execute_one_pass): Do not add transforms to inline clones.
	* symbol-summary.h (function_summary_base): Make insert and duplicate
	hooks fail instead of silently producing empty summaries; add way to
	disable duplication hooks
	(call_summary_base): Likewise.
	* tree-nested.c (nested_function_info::get_create): Disable insertion
	hooks
	(maybe_record_nested_function): Likewise.