public static boolean isSimplifiableReturnNegated(GrIfStatement ifStatement) {
    GrStatement thenBranch = ifStatement.getThenBranch();
    thenBranch = ConditionalUtils.stripBraces(thenBranch);
    GrStatement elseBranch = ifStatement.getElseBranch();
    elseBranch = ConditionalUtils.stripBraces(elseBranch);
    return ConditionalUtils.isReturn(thenBranch, "false")
        && ConditionalUtils.isReturn(elseBranch, "true");
  }
public static boolean isSimplifiableReturnNegated(GrIfStatement ifStatement)