gas/

	gas/
	* config/tc-mips.c (file_ase_mips16): Adjust comment.
	(append_insn): Update file_ase_mips16.
	(mips_after_parse_args): Don't set file_ase_mips16 here.

	gas/testsuite/
	* gas/mips/elf_ase_mips16.d: Update test for new MIPS16 ASE flag
	semantics.
	* gas/mips/elf_ase_mips16-2.d: New test.
	* gas/mips/nop.s: Source for the new test.
	* gas/mips/mips.exp: Run the new test.

	binutils/testsuite/
	* lib/binutils-common.exp (regexp_diff): Implement inverse
	matching, requested by `!'.