code completion and "click to definition" does not work for association files

[chienpro987654]

Environment

• OS and Version: Windows 10, 22H2
• VS Code Version: 1.96.4
• C/C++ Extension Version: 1.23.5

Bug Summary and Steps to Reproduce

Bug Summary:

Steps to reproduce:

1. Go to settings/Files: Associations
2. Add item *.pgc with value "c"
3. create a pgc file, write some code, eg: include, strlen,...
4. result as picture below

I've tried so many things to fix this, from disabling/uninstalling extensions, reinstalling vscode, changing intellisense config,... Nothing worked until I downgraded the version back to v.1.22.11. I still raised this issue hoping it gets fixed in the recent or next version.

Configuration and Logs

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/**"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "windowsSdkVersion": "10.0.22621.0",
            "cppStandard": "c++17",
            "intelliSenseMode": "windows-gcc-x64",
            "compilerPath": "C:\\msys64\\ucrt64\\bin\\gcc.exe",
            "cStandard": "gnu99"
        }
    ],
    "version": 4
}

Other Extensions

No response

Additional context

No response

[bobbrow]

I can reproduce this on 1.23.5. We'll investigate a fix.

[sean-mcmanus]

@bobbrow I'm seeing it repro with 1.22.11 too, although it might still be a regression from some earlier release.