weird exception on windows

[Kagamin]

You said tests fail?

class SourceResult
{
	private const
	{
		string file;
		size_t line;
	}
	this(string fileName = __FILE__, size_t line = __LINE__, size_t 
range = 6) nothrow
	{
		this.file = fileName;
		this.line = line;
		if (!fileName.exists)
		{
			return;
		}
	}
}

unittest
{
	auto result = new SourceResult("test/values.d", 26);
	auto msg = result.file;
}

Does this fail too?