Fixed parameter count of runtime call to Activities.ExpandStack

git-svn-id: https://svn.inf.ethz.ch/svn/lecturers/a2/trunk@6394 8c9fc860-2736-0410-a75d-ab315db34111

source/FoxIntermediateBackend.Mod

@@ -1381,7 +1381,7 @@ TYPE
 					Emit(Push(-1, op2));
 					Emit(Push(-1, reg));
 					ReleaseIntermediateOperand(reg);
-					CallThis(position, "Activities","ExpandStack",0);
+					CallThis(position, "Activities","ExpandStack",2);
 					Emit(Result(-1, sp));
 					nocall.Resolve(section.pc);
 				END;