Neme12

 private static bool IsTypeName(
            SyntaxNodeOrToken nodeOrToken,
            SemanticModel semanticModel,
            CancellationToken cancellationToken)
        {
            // Syntactically, everything works out. We're in a pretty good spot to show 'when' now.
            // But let's not do it just yet... Consider these cases:
            // case SyntaxNode |
            // case SyntaxNode w|
            // If what we have here is known to be a type, we don't want to clutter the variable name suggestion list

Neme12

<Application
    x:Class="FileBrowser.Universal.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:FileBrowser.Universal"
    xmlns:strings="using:FileBrowser.Universal.Strings"
    xmlns:converters="using:Neme.Mvvm.Converters"
    xmlns:localConverters="using:FileBrowser.Universal.Converters"
    xmlns:utilities="using:FileBrowser.Universal.Utilities"
    xmlns:resources="using:FileBrowser.Universal.Resources"