ld/

ld/
	* ld.texinfo (INSERT): Describe.
	* ldgram.y (ldgram_in_script, ldgram_had_equals): Delete.
	(INSERT_K, AFTER, BEFORE): Add as tokens.
	(ifile_p1): Handle INSERT statements.
	(saved_script_handle, force_make_executable): Move to..
	* ldmain.c: ..here.
	(previous_script_handle): New global var.
	* ldmain.h (saved_script_handle, force_make_executable): Declare.
	(previous_script_handle): Likewise.
	* ldlex.l (INSERT_K, AFTER, BEFORE): Add tokens.
	* lexsup.c (parge_args <-T>): Set previous_script_handle.
	* ldlang.c (lang_for_each_statement_worker): Handle insert statement.
	(map_input_to_output_sections, print_statement): Likewise.
	(lang_size_sections_1, lang_do_assignments_1): Likewise.
	(insert_os_after): New function, extracted from..
	(lang_insert_orphan): ..here.
	(process_insert_statements): New function.
	(lang_process): Call it.
	(lang_add_insert): New function.
	* ldlang.h (lang_insert_statement_enum): New.
	(lang_insert_statement_type): New.
	(lang_statement_union_type): Add insert_statement.
	(lang_add_insert): Declare.
ld/testsuite/
	* ld-spu/ovl.lnk: Delete overlay.
	* ld-spu/ovl1.lnk: New file.
	* ld-spu/ovl2.lnk: New file.
	* ld-spu/ovl.d: Update.
	* ld-spu/ovl2.d: Update.