private void parseSetLiteralTail(SyntaxTreeBuilder.Marker startMarker) {
    while (myBuilder.getTokenType() != PyTokenTypes.RBRACE) {
      checkMatches(PyTokenTypes.COMMA, message("PARSE.expected.comma"));
      if (!parseNamedTestExpression(false, false)) {
        break;
      }
    }
    checkMatches(PyTokenTypes.RBRACE, message("PARSE.expected.rbrace"));
    startMarker.done(PyElementTypes.SET_LITERAL_EXPRESSION);
  }
private void parseSetLiteralTail(SyntaxTreeBuilder.Marker startMarker)