sheaf authored Feb 25, 2022 and Marge Bot committed Mar 05, 2022

  This patch does the following two things:

    1. Fix the check in Core Lint to properly throw an error when it
       comes across Float#/Double# literal patterns. The check
       was incorrect before, because it expected the type to be
       Float/Double instead of Float#/Double#.

    2. Add an error in the parser when the user writes a floating-point
       literal pattern such as `case x of { 2.0## -> ... }`.

  Fixes #21115