* utils/input/plugins: Return `Result` when loading
a plugin and failing to find it. Since we look up the plugin in multiple
locations, make sure we preserve each of these lookup failures and
report them to the user. This way the user can see what locations were
actually checked.
In addition, before performing the lookup, deduplicate the array of
locations to check. This prevents errors where we look up the same
plugin multiple times in the exact same locations, which can leave a bad
impression on anyone reading it who isn't familiar with the code.
* server/wasm_vm: Remove obsolete context
which was previouly required because the function it is attached to
returned only an `Option` instead of a `Result`.
48bc2281c7