docs: public final boolean synpred1_DSLMap() {
  		state.backtracking++;
  		int start = input.mark();
  		try {
  			synpred1_DSLMap_fragment(); // can never throw exception
  		} catch (RecognitionException re) {
  			System.err.println("impossible: "+re);
  		}
  		boolean success = !state.failed;
  		input.rewind(start);
  		state.backtracking--;
  		state.failed=false;
  		return success;
  	}