Alias for gvars, alias on main

Thanks to elia for the idea on how to accomplish that!

Update roda-sprockets.md

Opal::Cache, an optional compiler cache

Update for roda-sprockets 1.1

First, maybe how to use it:

```ruby
OPAL_CACHE=1 bundle exec rake mspec_opal_nodejs
```

I made...

Instead of disabling it we'll just use a null-cache.
Also the cache can now be configured with a...

CI: Performance regression (and progression) check

CI: Permissively check for introduced V8 deoptimizations

Before:
```
[user@localhost opal]# bin/opal <<< 'test'
from -:1:1:in `undefined'
from /tmp/o...

Co-authored-by: Brady Wied <[email protected]>

Backport some methods from opal-rspec

Implement the Flip-Flop operators

Modernize Exceptions

TracePoint :class support.

Fixed multiple line Regexp literal to not generate invalid syntax as JavaScript

Currently, the following ruby code is compiled to invalid syntax as a
JavaScript code by Opal.

...

Co-authored-by: hmdne <[email protected]>

Provide functionality according to ruby specs/docs, add `invoke_tracers_for_class()`
to `runtime...

The problem was, that frames were offset by one line (as in: function
names and source location ...

Update CHANGELOG.md

Reimplement Promise to make it bridged with JS native Promise

Parser 3.0: Implement pattern matching.

* Support the find pattern
* Fix a few bugs (save pattern, wrong return values for inline matchi...

Most of things work, except for the find pattern (`a => [*, b, *]`),
which is experimental and t...

In addition, modify the Struct initializer a little. In my experience,
I have never encountered ...

Chore: Update filters

Correct the utf-8 unpack implementation

- better semantics of force_encoding regarding frozen strings
- String#+ to optimize String cons...

* #ord to use codePointAt, to support >BOM characters
* #inspect to use \x notation for binary s...

It's not been updated in a while.

* replace `bytes = bytes.slice(1, bytes.length);` copying with index

* Array#pack now returns a properly encoded string (so #pack and #unpack work two way)
* A fix t...

Co-authored-by: catmando <[email protected]>

Implement begin .. end while

Rework class variables to support inheritance correctly

ObjectSpace & ObjectSpace::WeakMap

Fix `class ::String`.

Fix `class Class < superclass` for invalid superclass

Remove Number#step and implement Numeric#step

Co-Authored-By: Elia Schito <[email protected]>

Parse the NODE_OPTS environment variable in the Node runner

Chore (small CI change, update UNRELEASED, Ruby version)

Depending on if SecureRandom tests have already been ran, sometimes a call
to Random.urandom fai...

The former behavior was to create a subclass of String (as
`"::".$$class` is a String), which wa...

A proper SecureRandom support + Random::Formatter module

Rework the String constructor; fixes #2185

Improve Array#unshift performance on v8 > 7.1

Adapt the "unshiftAllGuillaume" function from
https://gist.github.com/Mogztter/1d0005cc40555ae79...