Add interface files to jsx files in jscomp/others

[cristianoc]

Without interface files, one gets errors when compiling a local interface file with the same name e.g. Jsx.resi.

The implementation /Users/cristianocalcagno/GitHub/rescript-vscode/analysis/tests/src/Jsx.res
       does not match the interface /Users/cristianocalcagno/GitHub/rescript-compiler/jscomp/others/jsx.cmi:
       The value `component' is required but not provided
...

Also why jsx.ml and not jsx.res ?

[mununki]

Also why jsx.ml and not jsx.res ?

Is it possible to compile the *.res in /jscomp/others?

[cristianoc]

Also why jsx.ml and not jsx.res ?

Is it possible to compile the *.res in /jscomp/others?

Not sure either. One has to try.

[cristianoc]

Turns out this has nothing to do with interface files.
It only happens when one used a locally build compiler vs one packaged for npm.
In particular, to make it work with a local build one needs to build with:

RESCRIPT_FORCE_REBUILD=1 npm ci

Not sure why but taking a look.
CC @cknitt

[cristianoc]

This seems to have to do with buildLibs in scripts/install.js.
Not sure why this does not happen on a normal local build.