When creating the Ruby AST, we were previously allocating Location
objects for every node and every inner location. Instead, this
commit changes it to pack both the start offset and length into a
single u64 and pass that into the nodes. Then, when the locations
are requested via a reader method, we lazily allocate the Location
objects.
de203dca83
Co-Authored-By: Aaron Patterson <tenderlove@ruby-lang.org>
This allows ... argument forwarding to benefit from Allocationless
Anonymous Splat Forwarding, allowing the `f` call below to not
allocate an array or a hash.
```ruby
a = [1]
kw = {b: 2}
def c(a, b:)
end
def f(...)
c(...)
end
f(*a, **kw)
```
This temporarily skips prism locals tests until prism is changed
to use * and ** for ..., instead of using ruby2_keywords.
Ignore failures in rbs bundled gems tests, since they fail due
to this change.
