PR other/77609: Let the assembler choose ELF section types for miscellaneous named...

PR other/77609: Let the assembler choose ELF section types for miscellaneous named sections

gcc/
	PR other/77609
	* varasm.c (default_section_type_flags): Set SECTION_NOTYPE for
	any section for which we don't know a specific type it should have,
	regardless of name.  Previously this was done only for the exact
	names ".init_array", ".fini_array", and ".preinit_array".
	(default_elf_asm_named_section): Add comment about
	relationship with default_section_type_flags and SECTION_NOTYPE.
	(get_section): Don't consider it a type conflict if one side has
	SECTION_NOTYPE and the other doesn't, as long as neither has the
	SECTION_BSS et al used in the default_section_type_flags logic.

From-SVN: r259969