Fix calling convention by managing top of stack and adjusting on way in and out of function calls.

src/main/java/lua/io/Closure.java

@@ -17,8 +17,8 @@ public class Closure extends LValue {
 
 
 	// perform a lua call
-	public int luaStackCall(StackState state, int base, int nargs) {
-		state.clear( base+1+nargs, p.numparams-nargs );
-		return state.vmExecute( this, base+1 );
+	public void luaStackCall(StackState state, int base) {
+		state.adjustTop( base+1+p.numparams );
+		state.vmExecute( this, base+1 );
 	}
 }