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

src/main/java/lua/value/LTable.java

@@ -50,14 +50,15 @@ public class LTable extends LValue {
 		}
 
 		// perform a lua call
-		public int luaStackCall(StackState state, int base, int nargs) {
+		public void luaStackCall(StackState state, int base) {
 			if ( e.hasMoreElements() ) {
 				LValue key = (LValue) e.nextElement();
+				state.adjustTop(base+2);
 				state.stack[base] = key;
 				state.stack[base+1] = t.luaGetTable(key);
-				return 2;
+			} else {
+				state.adjustTop(base);
 			}
-			return 0;			
 		}
 	}
 

src/main/java/lua/value/LValue.java

@@ -15,9 +15,8 @@ public class LValue {
 	}
 
 	// perform a lua call, return number of results actually produced
-	public int luaStackCall(StackState state, int base, int nargs) {
+	public void luaStackCall(StackState state, int base) {
 		luaUnsupportedOperation();
-		return 0;
 	}
 
 	// unsupported except for numbers