Error in pass2 for type FSharp.DataFrame.FSharpFrameExtensions, error: duplicate entry 'Frame`2.GroupRowsBy' in method table

[KevinRansom]

[from fsbugs]

Simplified repro:

type Frame = 
  class 
  end
module X =
  type Frame with
    member frame.GroupRowsBy(key) = ()
    member frame.GroupRowsBy(key) = ()

Issue: Signatures in extrinsic type extensions are not validated for uniqueness.

[KevinRansom]

Hey Don ... is there any progress on this or should I assign this back to unassigned, so that someone else can take a crack at it?

[dsyme]

I've cleared the assignee....