Hover IntelliSense does not display comment-based help (Synopsis/Description) #5501

Summary

When hovering over a function call (or its definition) in a .ps1 script, the hover tooltip shows the function signature but does not display the comment-based help content (.SYNOPSIS, .DESCRIPTION, .PARAMETER).

Steps to Reproduce

1. Create a .ps1 file with a function that has comment-based help:

<#
.SYNOPSIS
    Writes a colored line to the console.
.PARAMETER Message
    The text to display.
.PARAMETER Color
    The foreground color to use.
#>
function WriteColorLine([string] $Message, [ConsoleColor] $Color)
{
    $prev = [Console]::ForegroundColor
    [Console]::ForegroundColor = $Color
    [Console]::WriteLine($Message)
    [Console]::ForegroundColor = $prev
}

WriteColorLine "Hello" Cyan

2. Hover over WriteColorLine on the call site or the definition.

Expected Behavior

The hover tooltip should display the Synopsis, Description, and Parameter documentation from the comment-based help block (similar to how C# displays XML doc comments).

Actual Behavior

The hover tooltip only shows the function signature. No Synopsis or Description text is displayed.

Tested Placements

All valid comment-based help placements were tested with the same result:

• Above the function keyword
• Inside the function body (first statement, before param())
• Inside the function body with param() block after the help comment

In all cases, Get-Help correctly displays the documentation when the script is dot-sourced, confirming the help syntax is valid.

Environment

• VS Code PowerShell Extension: v2024.x+
• OS: Windows 11
• PowerShell: 7.x