We already added support for "//go:embed" with string and []byte,
by not obfuscating the "embed" import path.
However, embed.FS was still failing:
> garble build
[stderr]
# test/main
:13: go:embed cannot apply to var of type embed.WtKNvwbN
The compiler detects the type by matching its name to exactly "embed.FS",
so don't obfuscate the name "FS" either.
While at it, ensure that the embed code behaves the same with "go build".
Updates #349.
Daniel Martí
lu4p