* expr.h: Remove prototypes of functions defined in builtins.c.
	* tree.h: (build_call_expr_*, build_string_literal): Add prototypes.
	Remove prototypes of functions defined in builtins.c.
	* builtins.h: Update prototype list to include all exported functions.
	* builtins.c: (default_libc_has_function, gnu_libc_has_function,
	no_c99_libc_has_function): Move to targhooks.c
	(build_string_literal, build_call_expr_loc_array,
	build_call_expr_loc_vec, build_call_expr_loc, build_call_expr): Move
	to tree.c.
	(expand_builtin_object_size, fold_builtin_object_size): Make static.
	* targhooks.c (default_libc_has_function, gnu_libc_has_function,
	no_c99_libc_has_function): Relocate from builtins.c.
	* tree.c: Include builtins.h.
	(build_call_expr_loc_array, build_call_expr_loc_vec,
	build_call_expr_loc, build_call_expr, build_string_literal): Relocate
	from builtins.c.
	* fold-const.h (fold_fma): Move prototype to builtins.h.
	* realmpfr.h (do_mpc_arg2): Move prototype to builtins.h.

	* fortran/trans.c (trans_runtime_error_vararg): Call
	fold_build_call_array_loc instead of fold_builtin_call_array.

	* asan.c: Include builtins.h.
	* cfgexpand.c: Likewise.
	* convert.c: Likewise.
	* emit-rtl.c: Likewise.
	* except.c: Likewise.
	* expr.c: Likewise.
	* fold-const.c: Likewise.
	* gimple-fold.c: Likewise.
	* gimple-ssa-strength-reduction.c: Likewise.
	* gimplify.c: Likewise.
	* ipa-inline.c: Likewise.
	* ipa-prop.c: Likewise.
	* lto-streamer-out.c: Likewise.
	* stmt.c: Likewise.
	* tree-inline.c: Likewise.
	* tree-object-size.c: Likewise.
	* tree-sra.c: Likewise.
	* tree-ssa-ccp.c: Likewise.
	* tree-ssa-forwprop.c: Likewise.
	* tree-ssa-loop-ivcanon.c: Likewise.
	* tree-ssa-loop-ivopts.c: Likewise.
	* tree-ssa-math-opts.c: Likewise.
	* tree-ssa-reassoc.c: Likewise.
	* tree-ssa-threadedge.c: Likewise.
	* tree-streamer-in.c: Likewise.
	* tree-vect-data-refs.c: Likewise.
	* tree-vect-patterns.c: Likewise.
	* tree-vect-stmts.c: Likewise.

	c
	* c-decl.c: Include builtins.h.
	* c-parser.c: Likewise.

	cp
	* decl.c: Include builtins.h.
	* semantics.c: Likewise.

	go
	* go-gcc.cc: Include builtins.h.

	lto
	* lto-symtab.c: Include builtins.h.

	config
	* aarch64/aarch64.c: Include builtins.h.
	* alpha/alpha.c: Likewise.
	* arc/arc.c: Likewise.
	* arm/arm.c: Likewise.
	* avr/avr.c: Likewise.
	* bfin/bfin.c: Likewise.
	* c6x/c6x.c: Likewise.
	* cr16/cr16.c: Likewise.
	* cris/cris.c: Likewise.
	* epiphany/epiphany.c: Likewise.
	* fr30/fr30.c: Likewise.
	* frv/frv.c: Likewise.
	* h8300/h8300.c: Likewise.
	* i386/i386.c: Likewise.
	* i386/winnt.c: Likewise.
	* ia64/ia64.c: Likewise.
	* iq2000/iq2000.c: Likewise.
	* lm32/lm32.c: Likewise.
	* m32c/m32c.c: Likewise.
	* m32r/m32r.c: Likewise.
	* m68k/m68k.c: Likewise.
	* mcore/mcore.c: Likewise.
	* mep/mep.c: Likewise.
	* microblaze/microblaze.c: Likewise.
	* mips/mips.c: Likewise.
	* mmix/mmix.c: Likewise.
	* mn10300/mn10300.c: Likewise.
	* moxie/moxie.c: Likewise.
	* msp430/msp430.c: Likewise.
	* nds32/nds32.c: Likewise.
	* pa/pa.c: Likewise.
	* pdp11/pdp11.c: Likewise.
	* picochip/picochip.c: Likewise.
	* rl78/rl78.c: Likewise.
	* rs6000/rs6000.c: Likewise.
	* rx/rx.c: Likewise.
	* s390/s390.c: Likewise.
	* score/score.c: Likewise.
	* sh/sh.c: Likewise.
	* sparc/sparc.c: Likewise.
	* spu/spu.c: Likewise.
	* stormy16/stormy16.c: Likewise.
	* tilegx/tilegx.c: Likewise.
	* tilepro/tilepro.c: Likewise.
	* v850/v850.c: Likewise.
	* vax/vax.c: Likewise.
	* xtensa/xtensa.c: Likewise.

From-SVN: r211145