Do not use ruby2_keywords for ... argument forwarding

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.

1 files changed, 0 insertions, 1 deletions

diff --git a/parse.y b/parse.y
index 71b7507d27..db7154446d 100644
--- a/parse.y
+++ b/parse.y
@@ -1627,7 +1627,6 @@ static void numparam_pop(struct parser_params *p, NODE *prev_inner);
 #else
 #define arg_FWD_BLOCK idFWD_BLOCK
 #endif
-#define FORWARD_ARGS_WITH_RUBY2_KEYWORDS
 
 #define RE_OPTION_ONCE (1<<16)
 #define RE_OPTION_ENCODING_SHIFT 8