Inlines work.

src/EditorFeatures/Core/Shared/Extensions/TaggedTextExtensions.cs

@@ -31,19 +31,27 @@ public static TextBlock ToTextBlock(this TaggedText part, ClassificationTypeMap
             return SpecializedCollections.SingletonEnumerable(part).ToTextBlock(typeMap);
         }
 
-        public static TextBlock ToTextBlock(this IEnumerable<TaggedText> parts, ClassificationTypeMap typeMap)
+        public static IList<Inline> ToInlines(this IEnumerable<TaggedText> parts, ClassificationTypeMap typeMap)
         {
-            var result = new TextBlock() { TextWrapping = TextWrapping.Wrap };
-
             var formatMap = typeMap.ClassificationFormatMapService.GetClassificationFormatMap("tooltip");
-            result.SetDefaultTextProperties(formatMap);
+            var inlines = new List<Inline>();
 
             foreach (var part in parts)
             {
-                result.Inlines.Add(part.ToRun(formatMap, typeMap));
+                inlines.Add(part.ToRun(formatMap, typeMap));
             }
 
-            return result;
+            return inlines;
+        }
+
+        public static TextBlock ToTextBlock(this IEnumerable<TaggedText> parts, ClassificationTypeMap typeMap)
+        {
+            var result = new TextBlock() { TextWrapping = TextWrapping.Wrap };
+
+            var formatMap = typeMap.ClassificationFormatMapService.GetClassificationFormatMap("tooltip");
+            result.SetDefaultTextProperties(formatMap);
+
+            result.Inlines.AddRange(parts.ToInlines(typeMap));
         }
 
         public static IList<ClassificationSpan> ToClassificationSpans(

src/VisualStudio/Core/Def.Next/FindReferences/StreamingFindReferencesPresenter.RoslynDefinitionBucket.cs

-using Microsoft.CodeAnalysis;
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Documents;
+using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Editor.Navigation;
 using Microsoft.CodeAnalysis.Editor.Shared.Extensions;
 using Microsoft.CodeAnalysis.FindReferences;
@@ -44,11 +47,19 @@ private object GetValue(string key)
                 case StandardTableKeyNames.FullText:
                     return DefinitionItem.DisplayParts.JoinText();
 
-                //case StandardTableKeyNames2.TextInlines:
-                //    return DefinitionItem.DisplayParts.ToTextBlock(_presenter._typeMap).Inlines;
+                case StandardTableKeyNames2.TextInlines:
+                    return DefinitionItem.DisplayParts.ToInlines(_presenter._typeMap);
 
                 case StandardTableKeyNames2.DefinitionIcon:
                     return DefinitionItem.Tags.GetGlyph().GetImageMoniker();
+
+                //case StandardTableKeyNames2.TextInlines:
+                //    // content of the bucket displayed as a rich text
+                //    var inlines = new List<Inline>();
+                //    inlines.Add(new Run("testing") { FontWeight = FontWeights.Bold });
+                //    inlines.Add(new Run(": defined in "));
+
+                //    return inlines;
                 }
 
                 return null;