Second or later compilation uses value type returned by previous execution of code.
Use the defined type as return value of the runtime function of Basic always.

(cherry picked from commit 7470c682)

Conflicts:
	basic/inc/basic/sbxmeth.hxx
	basic/inc/basic/sbxobj.hxx
	basic/source/runtime/stdobj.cxx
	basic/source/sbx/sbxobj.cxx

Change-Id: I3064e8403286a9c1401ef658bf139bedeae11f17