return new GoodEquals(a, b);
    }

    // instance method ignored
    public Object badIgnored() {
      return new BadEquals();
    }

    // primitive ignored
    public int returnsInt() {
      throw new UnsupportedOperationException();
    }

    // void ignored
    public void voidMethod() {
      throw new UnsupportedOperationException();
    }

    // non-public method ignored

			f.walk(n.Rhs, ctxAssign2, visit)
		} else {
			f.walk(n.Rhs, ctxExpr, visit)
		}
	case *ast.GoStmt:
		f.walk(n.Call, ctxExpr, visit)
	case *ast.DeferStmt:
		f.walk(n.Call, ctxDefer, visit)
	case *ast.ReturnStmt:
		f.walk(n.Results, ctxExpr, visit)
	case *ast.BranchStmt:
	case *ast.BlockStmt:
		f.walk(n.List, context, visit)
	case *ast.IfStmt:
		f.walk(n.Init, ctxStmt, visit)
		f.walk(&n.Cond, ctxExpr, visit)