Issue #11932 has been updated by Radosaw Buat.

File reduced_imap.rb added
File reduced_m17n.rb added
File reduced_open-uri.rb added
File reduced_regexp.rb added
File reduced_text.rb added

I reduced buggy files. Seems it's related to parsing regexp.

----------------------------------------
Bug #11932: Ripper.sexp can't parse some files from it's repository and returns nil
https://bugs.ruby-lang.org/issues/11932#change-55892

* Author: Radosaw Buat
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.4.0dev (2015-12-31 trunk 53395) [x86_64-darwin15]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
Test file bug.rb:

```ruby
require "ripper"

puts Dir['**/**.rb'].find_all { |f| Ripper.sexp(File.read(f)) == nil }
```

```
$ make runruby TESTRUN_SCRIPT=bug.rb
./miniruby -I./lib -I. -I.ext/common  ./tool/runruby.rb --extout=.ext  -- --disable-gems bug.rb
lib/net/imap.rb
lib/open-uri.rb
lib/rexml/text.rb
test/ruby/test_m17n.rb
test/ruby/test_regexp.rb
```

I didn't find any info in documentation anout returning nil so I assume this is not intended behavior.

---Files--------------------------------
bug.rb (90 Bytes)
reduced_imap.rb (132 Bytes)
reduced_m17n.rb (79 Bytes)
reduced_regexp.rb (42 Bytes)
reduced_open-uri.rb (95 Bytes)
reduced_text.rb (64 Bytes)


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