(push,pop): Fix expected output.
	* gas/m32r/relax-1.d: Emitted nops are serial, not parallel.
	* gas/m32r/fslot.d: Prefix all | with \.
	* gas/m32r/fslotx.d: Prefix all | with \.
	* gas/m32r/m32rx.d: Assemble with -O to get effect we're testing for.
	Prefix all | with \.  Fix misc. typos.
	* gas/m32r/m32rx.s (bc__add,bcl__addi): Use non-relaxable versions
	of branches so we get the effect we're testing for.
	* gas/m32r/relax-2.d: Prefix all | with \.
| must be prefixed with \ (or otherwise escaped).
Fix problems that were then revealed.
Some still remain in m32rx.[ds].