Minify additional js files

[VirtualTim]

Additional js files generated by the compiler do not get minified. They probably should be.
For example Module.worker.js is generated when compiling with PTHREADS, Module.fetch.js when compiling with FETCH. These files are only ~11KB and ~115KB, but I can't see any harm on running the minifier on them.

[blockspacer]

1 Minify step can make debugging harder.
2 App developers can minify resulting files as they want.

If you want to add minify step - please make it optional (even better - using flag with ability to switch minify method)

[VirtualTim]

Well, yeah, I figured that this would obey the existing minification flags. Currently if you compile with something like -O3 then Module.js is minified, but those other files are not.

[kripken]

I agree, it makes sense to do this with the current flags (-g1 to preserve whitespace, etc.).

To minify those files, running Building.js_optimizer_no_asmjs with no passes should be enough, I think.

[stale]

This issue has been automatically marked as stale because there has been no activity in the past year. It will be closed automatically if no further activity occurs in the next 7 days. Feel free to re-open at any time if this issue is still relevant.

[VirtualTim]

worker.js is now minified, but I don't' believe that fetch.js is.
Not a big deal, but would still be nice.

[stale]

This issue has been automatically marked as stale because there has been no activity in the past year. It will be closed automatically if no further activity occurs in the next 30 days. Feel free to re-open at any time if this issue is still relevant.