Fix `call { true or next }` producing invalid js

Remove BasicObject#class

MRI defines it on Kernel (as we also do) and not on basic object.

Time#strftime %j should be padded to width 3

Implement String#getbyte

Also make the implementation of Stirng#bytes rely on #getbyte instead
of forwarding to the encod...

Update CI Ruby versions

Parser 3.0: Change the Ruby version to 3.0; update fails

Update ruby specs

Previously the behavior was buggy on some platforms.

They made sense when we were compiling the CHANGELOG manually, but
now that we're using GH relea...

- Switch to <<~HERDOC for better layout of spec files
- Update the interface of MSpec.randomize
-

Previously browsers were served the original version.

Parser 3.0: numblocks support

Change parser to 3.0

Fix the yarn cache for the CI build

Fix a zero-length regexp match bug

Compliant UTF8 to bytes implementation

resolves #2138

Fix Object#pretty_inspect

Before this commit it threw an error, because it tried to use String#<<.

Co-Authored-By: Dāvis ...

JavaScript engines are using UTF-16 internally but String are UTF-8 encoded by default

Switch to GitHub Actions

All due to broken stacktraces on Windows.

Only for windows.

It wasn't that useful anyway.

Cleanup Opal::Util, now that we use yarn we'll get the installation
error from the bin proxy exe...

Add --rbrequire (-q) option to opal cmdline tool

Fast path for Array#pop(1)

Improve Array#shift performance on v8 > 7.1 (Node 12+)

Fix BuilderProcessors::Processor.handles for rbenv

The short rationale behind it is that for now it's impossible to
require opal libraries like opa...

Keep the MersenneTwister implementation private

Don't pollute the global namespace unnecessarily.

Ensure string keys are converted to values in Hash#delete

Make sure that ignoreCase is either true or false (not undefined)