2016-09-21  Richard Sandiford  <richard.sandiford@arm.com>

	* gas/aarch64/diagnostic.s, gas/aarch64/diagnostic.l: Add tests for
	invalid uses of MUL VL and MUL in base AArch64 instructions.
	* gas/aarch64/sve-add.s, gas/aarch64/sve-add.d, gas/aarch64/sve-dup.s,
	gas/aarch64/sve-dup.d, gas/aarch64/sve-invalid.s,
	gas/aarch64/sve-invalid.d, gas/aarch64/sve-invalid.l,
	gas/aarch64/sve-reg-diagnostic.s, gas/aarch64/sve-reg-diagnostic.d,
	gas/aarch64/sve-reg-diagnostic.l, gas/aarch64/sve.s,
	gas/aarch64/sve.d: New tests.