From @Dima4ka on April 21, 2017 1:44

• VSCode Version: 1.11.2
• OS Version: macOS 10.12.4

Steps to Reproduce:

1. Install C# extension
2. Set:

"editor.quickSuggestions": {
    "other": true,
    "comments": false,
    "strings": false
  },

3. In .cs file write a block comment like this:

/// <summary
/// Checks that Index method returns proper model and status codes.
/// </summary>

4. Put dot in comment (at the end)

Expected

Nothing shows up

Actual

Silly suggestion (!--) shows up

Copied from original issue: microsoft/vscode#25109