gas/testsuite/

	Backport from mainline:

	2013-05-13  Yufeng Zhang  <yufeng.zhang@arm.com>
	* gas/aarch64/diagnostic.s: Update.
	* gas/aarch64/diagnostic.l: Ditto.
	* gas/aarch64/movi.s: Add new tests.
	* gas/aarch64/movi.d: Update.

opcodes/

	Backport from mainline:

	2013-05-13  Yufeng Zhang  <yufeng.zhang@arm.com>
	* aarch64-asm.c (aarch64_ins_advsimd_imm_modified): Remove assertion.
	* aarch64-opc.c (operand_general_constraint_met_p): Relax the range
	check from [0, 255] to [-128, 255].
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