Joseph Ferano
fe85ecd246
A computed path, a file that is not there, and a second argument that is not `string`. The type argument is now settled before the file is opened: a program asking for a type embed cannot read a file as was otherwise told the file was missing, and got the real complaint only after fixing the wrong thing. A missing asset is a compile error naming it rather than an empty embed, because an asset silently absent is the class of quiet wrongness the whole feature exists to remove. An empty *directory* is not that: it embeds cleanly as [0 EmbedFile] and len answers 0.
