IDE0040: Accessibility modifiers required should not be reported on file types

[RikkiGibson]

Related to #60819

File types cannot specify accessibility modifiers, so the IDE shouldn't suggest doing so.

Actual behavior:

file class FC // info IDE0040: Accessibility modifiers required
{
}

Expected behavior:

file class FC // no diagnostic
{
}

[Youssef1313]

roslyn/src/Workspaces/SharedUtilitiesAndExtensions/Compiler/CSharp/Services/SyntaxFacts/CSharpAccessibilityFacts.cs

Lines 30 to 44 in 58d8ea0

	case SyntaxKind.ClassDeclaration:
	case SyntaxKind.RecordDeclaration:
	case SyntaxKind.StructDeclaration:
	case SyntaxKind.RecordStructDeclaration:
	case SyntaxKind.InterfaceDeclaration:
	case SyntaxKind.EnumDeclaration:
	case SyntaxKind.DelegateDeclaration:
	case SyntaxKind.FieldDeclaration:
	case SyntaxKind.EventFieldDeclaration:
	case SyntaxKind.GetAccessorDeclaration:
	case SyntaxKind.SetAccessorDeclaration:
	case SyntaxKind.InitAccessorDeclaration:
	case SyntaxKind.AddAccessorDeclaration:
	case SyntaxKind.RemoveAccessorDeclaration:
	return true;