No Syntax Highlighting for `enum` declarations

Reproduce the report by opening a .ps1 or .psm1 file containing an enum declaration in VS Code, then trace the PowerShell syntax-highlighting grammar used by EditorSyntax. Done means enum declarations receive syntax highlighting without regressing existing PowerShell highlighting; compare the result with the behavior described in the issue.

Prerequisites

• I have written a descriptive issue title.
• I have searched all issues to ensure it has not already been reported.
• I have read the troubleshooting guide.
• I have verified that I am using the latest version of Visual Studio Code and the PowerShell extension.

Summary

Syntax highlighting for enum declarations in VS Code is non-existent:

PowerShell Version

Name                           Value
----                           -----
PSVersion                      7.1.3
PSEdition                      Core
GitCommitId                    7.1.3
OS                             Microsoft Windows 10.0.19043
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}       
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Visual Studio Code Version

1.60.0-insider
49af1cbe00271ac2ea36cfc5f7352fe31a7b0094
x64

Extension Version

ms-vscode.powershell@2021.5.1
ms-vscode.powershell@2021.6.2
ms-vscode.powershell-preview@2021.8.0

Steps to Reproduce

Open any .ps1 or .psm1 file with an enum declaration.

Visuals

No response

Logs

No response