docs: public int getSourceLineNumberForOffset(final int offset) {
  
          int lineNumber = -1;
          lineNumber = 0;
          for (; lineNumber < this.lineStartOffsets.length - 1; lineNumber++) {
  
              if (this.lineStartOffsets[lineNumber + 1] > offset) {
                  break;
              }
          }
          if (offset > lineStartOffsets[lineStartOffsets.length - 1]) {
              lineNumber = lineStartOffsets.length - 1;
          }
  
          // we now have line number, but it's 0-based. Need to convert to 1-based
          return lineNumber + 1;
      }