[ruby-core:119224] [Ruby master Bug#20748] Issue with defined? given method call with block in prism compiler

Issue #20748 has been updated by luke-gru (Luke Gruber).


I agree it's weird but it could cause an incompatibility I guess, `defined?()` is a weird one for sure.

----------------------------------------
Bug #20748: Issue with defined? given method call with block in prism compiler
https://bugs.ruby-lang.org/issues/20748#change-109802

* Author: luke-gru (Luke Gruber)
* Status: Open
* Assignee: kddnewton (Kevin Newton)
* ruby -v: 3.4.0dev
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
test.rb
```ruby
puts defined?(undefined_method(){})
```

```
./ruby --parser=parse.y -I../ruby/lib -I. -I.ext/x86_64-linux -I.ext/common -r./x86_64-linux-fake ../ruby/test.rb
expression
```

```
./ruby --parser=prism -I../ruby/lib -I. -I.ext/x86_64-linux -I.ext/common -r./x86_64-linux-fake ../ruby/test.rb
# empty line
```



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