Regexp.new does not coerce input to string

[HoneyryderChuck]

Given the following snippet:

class A
  def to_str
    "bang"
   end
end
Regexp.new(A.new)

CRuby will return /bang/. Truffleruby fails:

TruffleRuby doesn't have a case for the org.truffleruby.core.regexp.RegexpNodesFactory$RegexpCompileNodeFactory$RegexpCompileNodeGen node with values of type Cel::Macro::A(org.truffleruby.core.basicobject.RubyBasicObject) java.lang.Integer=0 (TypeError)
        from org.truffleruby.core.regexp.RegexpNodesFactory$RegexpCompileNodeFactory$RegexpCompileNodeGen.executeAndSpecialize(RegexpNodesFactory.java:901)
        from org.truffleruby.core.regexp.RegexpNodesFactory$RegexpCompileNodeFactory$RegexpCompileNodeGen.execute(RegexpNodesFactory.java:878)
        from org.truffleruby.language.control.SequenceNode.execute(SequenceNode.java:36)
        from org.truffleruby.language.RubyMethodRootNode.execute(RubyMethodRootNode.java:65)
        from org.graalvm.compiler.truffle.runtime.OptimizedCallTarget.executeRootNode(OptimizedCallTarget.java:659)

[andrykonchin]

Fixed in f9ae7a9. Thank you for reporting.