message: simplify ref naming
diff: @@ -494,10 +494,10 @@ export function isEndBox(marker: MergeTree.Marker) {
  marker.hasRangeLabel("box");
  }
  -export const contentReferenceProperty = "cref";
  +export const referenceProperty = "cref";
  -export function isContentReference(marker: MergeTree.Marker) {
  - return marker.hasProperty(contentReferenceProperty);
  +export function isReference(marker: MergeTree.Marker) {
  + return marker.hasProperty(referenceProperty);
  }
  export function segmentToItems(
  @@ -508,7 +508,7 @@ export function segmentToItems(
  context.paragraphLexer.lex(textSegment);
  } else if (segment.getType() === MergeTree.SegmentType.Marker) {
  let marker = <MergeTree.Marker>segment;
  - if (isContentReference(marker)) {
  + if (isReference(marker)) {
  context.paragraphLexer.mark(marker);
  } else if (marker.hasTileLabel("pg") || isEndBox(marker)) {
  context.nextPGPos = segpos;
  