dumpfile.h (enum tree_dump_index): Rename TDI_generic to TDI_gimple.

dumpfile.h (enum tree_dump_index): Rename TDI_generic to TDI_gimple.

	* dumpfile.h (enum tree_dump_index): Rename TDI_generic to
	TDI_gimple.
	(class dump_manager): Add register_dumps method.
	* dumpfile.c: Include langhooks.h.
	(dump_files): Use 0 instead of 3/4/5 for TDI_{original,gimple,nested}.
	(FIRST_AUTO_NUMBERED_DUMP): Decrease to 1.
	(FIRST_ME_AUTO_NUMBERED_DUMP): Define.
	(dump_manager::dump_register): Start with 512 entries instead of 32.
	(dump_manager::register_dumps): New method.
	* toplev.c (general_init): Instead of invoking register_dumps
	langhook, invoke register_dumps method on the dump manager.
	* gimplify.c (gimplify_function_tree): Use TDI_gimple instead of
	TDI_generic.

	* gimple-parser.c (c_parser_parse_gimple_body): Use TDI_gimple instead
	of TDI_generic.

From-SVN: r248947