This patch ports various fprintf calls in the inlining code to using
the dump API, using the %C format code for printing cgraph_node *.
I focussed on the dump messages that seemed most significant to
end-users; I didn't port all of the calls.

Doing so makes this information appear in -fopt-info and in
optimization records, rather than just in the dump_file.

It also changes the affected dumpfile-dumps from being unconditional
(assuming the dump_file is enabled) to being guarded by the MSG_*
status.  Hence various tests with dg-final scan-*-dump directives
need to gain "-all" or "-optimized" suffixes to -fdump-ipa-inline.

The use of %C throughout also slightly changes the dump format for
several messages, e.g. changing:

 Inlining void inline_me(char*) into int main(int, char**).

to:

../../src/gcc/testsuite/g++.dg/tree-ssa/inline-1.C:13:8: optimized:  Inlining void inline_me(char*)/0 into int main(int, char**)/2.

amongst other things adding "/order" suffixes to the cgraph node
names.

gcc/ChangeLog:
	PR ipa/86395
	* doc/invoke.texi (-fdump-ipa-): Document the "-optimized",
	"-missed", "-note", and "-all" sub-options.
	* ipa-inline.c (caller_growth_limits): Port from fprintf to dump
	API.
	(can_early_inline_edge_p): Likewise.
	(want_early_inline_function_p): Likewise.
	(want_inline_self_recursive_call_p): Likewise.
	(recursive_inlining): Likewise.
	(inline_small_functions): Likewise.
	(flatten_function): Likewise.
	(ipa_inline): Likewise.
	(inline_always_inline_functions): Likewise.
	(early_inline_small_functions): Likewise.
	(early_inliner): Likewise.
	* tree-inline.c (expand_call_inline): Likewise.

gcc/testsuite/ChangeLog:
	PR ipa/86395
	* g++.dg/ipa/devirt-12.C: Add "-all" suffix to
	"-fdump-ipa-inline".
	* g++.dg/ipa/imm-devirt-1.C: Add "-optimized" suffix to
	"-fdump-tree-einline".
	* g++.dg/tree-prof/inline_mismatch_args.C: Add "-all" suffix to
	"-fdump-tree-einline".
	* g++.dg/tree-ssa/inline-1.C: Add "-optimized" suffix to
	"-fdump-tree-einline".
	* g++.dg/tree-ssa/inline-2.C: Likewise.
	* g++.dg/tree-ssa/inline-3.C: Likewise.
	* g++.dg/tree-ssa/inline-4.C: New test, based on inline-1.C, but
	using "-fopt-info-inline".
	* gcc.dg/ipa/fopt-info-inline-1.c: New test.
	* gcc.dg/ipa/inline-4.c:  Add "-all" suffix to
	"-fdump-ipa-inline".  Add "-fopt-info-inline" and dg-optimized
	directive.
	* gcc.dg/ipa/inline-7.c: Add "-optimized" suffix to
	"-fdump-tree-einline".  Add "-fopt-info-inline" and dg-optimized
	directive.  Update scan-tree-dump-times to reflect /order
	suffixes.
	* gcc.dg/ipa/inlinehint-4.c: Update scan-tree-dump-times to
	reflect /order suffixes.
	* gcc.dg/plugin/dump-1.c: Add "-loop" to "-fopt-info-note" to
	avoid getting extra messages from inliner.
	* gcc.dg/plugin/dump-2.c: Likewise.
	* gcc.dg/pr26570.c: Add dg-prune-output to ignore new
	"function body not available" missed optimization messages.
	* gcc.dg/pr71969-2.c: Update scan-tree-dump-times to reflect
	/order suffixes.
	* gcc.dg/pr71969-3.c: Likewise.
	* gcc.dg/tree-ssa/inline-11.c: Add "-all" suffix to
	"-fdump-tree-einline".
	* gcc.dg/tree-ssa/inline-3.c: Add "-optimized" suffix to
	"-fdump-tree-einline".  Update scan-tree-dump-times to reflect
	/order suffixes.
	* gcc.dg/tree-ssa/inline-4.c: Add "-optimized" suffix to
	"-fdump-tree-einline".  Add "-fopt-info-inline" and dg-optimized
	directive.
	* gcc.dg/tree-ssa/inline-8.c: Add "-optimized" suffix to
	"-fdump-tree-einline".
	* gfortran.dg/pr79966.f90: Update scan-ipa-dump to reflect /order
	suffixes.

From-SVN: r265920