Missing dependency XXX in search path

Nobody has claimed this yet.

I see a lot of closed related issues but i still see it even after `bsb -clean-world -make-world` -> restart server -> restart editor:

```
File "", line 1:
Error: Missing dependency Json_decode in search path
```

Hello from /Users/Alex/Dev/Libs/contribs/atom-ide-reason/rls/rls-darwin-1.4.1.exe
...
>> Build system running: /Users/Alex/Dev/Projects/minima/minima/node_modules/bs-platform/lib/bsb.exe -make-world
>>> stdout
[1/6] Building src/Json_decode.cmi
[2/6] Building src/Json_encode.cmi
[3/6] Building src/Json.cmi
[4/6] Building src/Json_encode.cmj
[5/6] Building src/Json_decode.cmj
[6/6] Building src/Json.cmj
[1/8] Building src/Message.mlast
[2/8] Building src/Error.mlast
[3/8] Building src/Request.mlast
[4/8] Building src/Response.mlast
[5/8] Building src/Message.mlast.d
[6/8] Building src/Error.mlast.d
[7/8] Building src/Request.mlast.d
[8/8] Building src/Response.mlast.d
[1/4] Building src/Message-PouchdbSocketSyncCore.cmj
[2/4] Building src/Request-PouchdbSocketSyncCore.cmj
[3/4] Building src/Error-PouchdbSocketSyncCore.cmj
[4/4] Building src/Response-PouchdbSocketSyncCore.cmj
>>> stderr

Affected files:
Cleaning bsconfig.json
Sending notification {"jsonrpc": "2.0", "method": "textDocument/publishDiagnostics", "params": {"uri": "file:///Users/Alex/Dev/Projects/minima/minima/packages/pouchdb-socket-sync-core/bsconfig.json", "diagnostics": []}}
Deps @glennsl/bs-json
Dep loc /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/bsconfig.json
Compiled base: /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/lib/bs
Source directories: /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src
Source files found: /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_decode.ml : /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json.mli : /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json.ml : /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_decode.mli : /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_encode.ml : /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_encode.mli
Adding intf /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json.mli
Adding intf /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_decode.mli
Adding intf /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_encode.mli
Bad source file (extension) /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json.mli
Bad source file (extension) /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_decode.mli
Bad source file (extension) /Users/Alex/Dev/Projects/minima/minima/node_modules/@glennsl/bs-json/src/Json_encode.mli

Start by reproducing the diagnostic with `bsb -clean-world -make-world` and inspect the affected `bsconfig.json`, the `@glennsl/bs-json` dependency, and its `Json_decode` source files. Trace how the language server builds the search path; done means the reported dependency is resolved without the `Missing dependency Json_decode` diagnostic.

Written by the indexing model from the issue text.