Pack resolc.js and resolc.wasm into single file

[smiasojed]

Pack resolc.js and resolc.wasm into single file
Format JS files
Fix issue with Module overwriting in preloaded js.

[athei]

This way of packing it works better in Firefox than the way we tried before?

[smiasojed]

This way of packing it works better in Firefox than the way we tried before?

No is does not, I am doing still experiments
The most important point is that I have exposed the wasm data outside the code generated by emscripten, so for example I can experiment with wasm data compression.
For example the Wasm data bundled in soljson is compressed with lz4
To main issue is for me that we need to instantiate wasm two times as we need call revive twice in one compilation run.

Added lz4 compression, but there is still issue with compilation large contracts in firefox

[smiasojed]

@xermicus This file is taken from Solidity. Is the licensing compliant for use?

[xermicus]

I don't think so as ethereum/solidity appears to be GPL licensed.

[smiasojed]

Ok, so I will rewrite this small part, and we will simply base it on the original mini-lz4. Does that work for you?

[xermicus]

Sounds good, however I have a bunch of higher level questions related to this:

1. Why is this needed?
2. Why do they use a custom compression implementation (or is it also a custom algorithm)?
3. Why not just use a library?

[smiasojed]

1. It is used for resolc.wasm compression to limit its size
2. it standard lz4 compression, but needs to be embedded it in the resolc.js to decompress wasm on the fly
3. What do you mean? Do you want to embed npm lz4 package to resolc.js?

[smiasojed]

Alternative solution: #176