Fix ARI warning about function names in first column.

	Fix ARI warning about function names in first column.
	Put prototype declaration on same line as return type.
	* objc-exp.y: Ditto.
	* p-exp.y: Ditto.
	* python/py-stopevent.h: Ditto.
	For long function names, split parameters to allow function name
	on same line as return type.
	* solib-pa64.c: Ditto.
	* varobj.c: Ditto.
	* varobj.h: Ditto.
	For long function declaration, use single line.
	* hppa-tdep.h: Ditto.
	* inferior.h: Ditto.