Fix Windows x86 build

[pzychotic]

Pull Request Type

• GitHub Workflow changes
• Documentation or Wiki changes
• Build and Dependency changes
• Runtime changes
  • Render changes
  • Audio changes
  • Input changes
  • Network changes
  • Other changes

Description

This fixes compilation of Windows x86 builds when creating template instantiations of FnPtr with functions using __stdcall.
The x64 case works because the decltype of void __stdcall Fun(...) is the same as void Fun(...) so the missing GLFUNCCALL in the declaration does not matter.
With this change I was able to run a local x86 build of the game.

Related Issues

Related to #631

Screenshots (if applicable)

Checklist

• I have tested my changes locally and verified that they work as intended.
• I have documented any new or modified functionality.
• I have reviewed the changes to ensure they do not introduce any unnecessary complexity or duplicate code.
• I understand that by submitting this pull request, I am agreeing to license my contributions under the project's license.

Additional Comments

[Lgt2x]

Good catch :)