Inline Hints - do not allow double click for collection expression type hint (#78900)

* do not allow double click for collection expression hint

* Update src/EditorFeatures/Test2/InlineHints/CSharpInlineTypeHintsTests.vb

Co-authored-by: Cyrus Najmabadi <cyrus.najmabadi@gmail.com>

* comment

---------

Co-authored-by: Cyrus Najmabadi <cyrus.najmabadi@gmail.com>

Author: akhera99

src/EditorFeatures/Test2/InlineHints/CSharpInlineTypeHintsTests.vb

@@ -934,5 +934,34 @@ class C
 
             Await VerifyTypeHints(input, output)
         End Function
+
+        <WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/48941")>
+        Public Async Function TestNoDoubleClickWithCollectionExpression() As Task
+            Dim input =
+            <Workspace>
+                <Project Language="C#" CommonReferences="true">
+                    <Document>
+class A
+{
+    private static readonly ImmutableHashSet&lt;string?&gt; Hashes = {| ImmutableHashSet&lt;string?&gt;:|}[];
+}
+                    </Document>
+                </Project>
+            </Workspace>
+
+            Dim output =
+            <Workspace>
+                <Project Language="C#" CommonReferences="true">
+                    <Document>
+class A
+{
+    private static readonly ImmutableHashSet&lt;string?&gt; Hashes = [];
+}
+                    </Document>
+                </Project>
+            </Workspace>
+
+            Await VerifyTypeHints(input, output)
+        End Function
     End Class
 End Namespace

src/Features/CSharp/Portable/InlineHints/CSharpInlineTypeHintsService.cs

@@ -105,7 +105,10 @@ internal sealed class CSharpInlineTypeHintsService() : AbstractInlineTypeHintsSe
                 if (IsValidType(type))
                 {
                     var span = new TextSpan(collectionExpression.OpenBracketToken.SpanStart, 0);
-                    return new(type, span, new TextChange(span, GetTypeDisplayString(type)), leadingSpace: true);
+
+                    // We pass null for the TextChange in collection expressions because
+                    // inserting with the type is incorrect and will make the code uncompilable.
+                    return new(type, span, textChange: null, leadingSpace: true);
                 }
             }
         }