Make overcommit avaliable without globally installed one

Move some Opal helpers to the Runtime

The last parameter of Opal.find_super_dispatcher wasn't used. It now
accepts a boolean that will...

When calling super and for better method missing management when the
method body is provided we ...

Better integer recognition

Integer.=== now recognizes only numbers without decimals.
Opal.is_a() is now able to distinguish...

Differentiate the class name from the class itself in the spec some of
the classes are the same ...

Port prettyprint to Opal

[skip ci]

Implement print and puts in js

Misc fixes

Remove helpers special calls

They're not used anywhere anymore.

Fix parsing unicode chars from Opal

JavaScript works with UTF-16/UCS-2 and the strings we're passing to
the lexer ar not UTF-8, so t...

Fix ruby 2.7 warnings

Fix Array keep_if, delete_if, reject!, select!

Takes away all of its warnings, this goes along with getting rid of
the dependency on opal-minit...

They're deprecated in Ruby 2.7 and expected to be removed in the
future.

Set the default external encoding to the current one

Should give better performance and smaller code size.

Match CRuby behavior when exceptions are raised in the block and about
when the array is updated.

Add a generic implementation of Kernel#caller and #warn(uplevel:)

This implementation should be good enough for browsers and node.

Move all the file writing to the Ruby side and create a dedicated
temporary folder to hold the c...

This better mirrors ruby.

SecureRandom#hex(n)

Travis updates

jruby is the slowest, starting first we save some time overall.

2.3 was removed, being EOL.

resolves #2060 set match on skip and scan_until

[skip ci]

Fix Regexp interpolation

resolves #2060

To properly interpolate regexps we need to check if the interpolated
value is a regexp or it is ...

Remove unused variables from runtime.js

Make the tin can a ton.

Add #2048

Move REPL implementation from bin/ to its own lib/ file + specs

Also add some specs to ensure it will keep working.

In this case for example ensure is clearly mirroring work done in the
preamble.

def run_inp...

Sometimes it makes sense and is more readable.

Use source-maps for Node.js stack-traces

This is propedeutical to source-mapped Node stacktraces.

[skip ci]

Support globalThis

Ref: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/globalThis

In strict-mode "this" inside anonymous functions is "undefined".

Make CI builds faster

We don't need the full history and we certainly need to save time
on the CI to have faster feedb...

Always live at the edge!

The lint task runs on the CI and taks a bunch of time to complete.
With this we'll have a check ...

Fix PathReader when a file is missing

This piece of code was duplicated within Builder#read.