Support PLMDebug (windows store app debugging)

[mrexodia]

https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/plmdebug

0. Install WinDbg (and open a command prompt next to windbg.exe)
1. Locate MicrosoftEdge.exe (C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\ for me)
2. Open AppxManifest.xml it should contain the version (38.14393.1066.0 for me):

<Identity Name="Microsoft.MicrosoftEdge" Publisher="CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US" Version="38.14393.1066.0" ProcessorArchitecture="neutral"/>

3. Run the command plmdebug.exe /enableDebug Microsoft.MicrosoftEdge_38.14393.1066.0_neutral__8wekyb3d8bbwe C:\CodeBlocks\x64dbg\bin\x96dbg.exe it should output:

Package full name is Microsoft.MicrosoftEdge_38.14393.1066.0_neutral__8wekyb3d8bbwe.
Enable debug mode
SUCCEEDED

4. Start Edge, it will start x64dbg.exe with the following command line:

C:\CodeBlocks\x64dbg\bin\x96dbg.exe -p 12400 -tid 10708

This command line is undocumented. WinDbg accepts -p as the process id (decimal), but -tid is undocumented/unsupported. It corresponds to the thread id (decimal) of the main thread, but this might be different if Edge is already running... thread to resume after attach