[NETSDKE2E] The CodeLens disappear in razor/blazor project.

[yinjiehe01]

Environment data

VS Code version:1.102.3
C# Extension version:2.88.28 from main branch

C# logs

C# output window contents:

See this page for collecting more detailed logs

Steps to reproduce

1.Install VS Code and C#&C# Devkit extension.
2. Create a blazor project and open it with VS Code.
3. Type the following code in page

@functions {
 void Foo()
 {
 }
}

@Foo()

4. Observe the CodeLens.

Expected behavior

The CodeLens appears.

Actual behavior

The CodeLens disappear

Additional context

Note repro on C# pre-release build 2.87.26

[davidwengier]

Dupe of dotnet/razor#12047, will be fixed by dotnet/razor#12078