message: Fix possible copy-paste error in TypeCheck function
diff: @@ -2729,7 +2729,7 @@ Expr *BinaryExpr::TypeCheck() {
  pt1 = CastType<PointerType>(type1);
  } else if (pt1 != NULL && lIsAllIntZeros(arg0)) {
  arg0 = new NullPointerExpr(pos);
  - type0 = arg1->GetType();
  + type0 = arg0->GetType();
  pt0 = CastType<PointerType>(type0);
  }
  