private boolean expectColon() {
    if (myBuilder.getTokenType() == PyTokenTypes.COLON) {
      myBuilder.advanceLexer();
      return true;
    }
    else if (myBuilder.getTokenType() == PyTokenTypes.STATEMENT_BREAK) {
      myBuilder.error(PyParsingBundle.message("PARSE.expected.colon"));
      return true;
    }
    final SyntaxTreeBuilder.Marker marker = myBuilder.mark();
    while (!atAnyOfTokens(null, PyTokenTypes.DEDENT, PyTokenTypes.STATEMENT_BREAK, PyTokenTypes.COLON)) {
      myBuilder.advanceLexer();
    }
    boolean result = matchToken(PyTokenTypes.COLON);
    if (!result && atToken(PyTokenTypes.STATEMENT_BREAK)) {
      myBuilder.advanceLexer();
    }
    marker.error(PyParsingBundle.message("PARSE.expected.colon"));
    return result;
  }
private boolean expectColon()