Rakudo's spectest progress graphs show a big jump in passing tests between 04 September and 05 September -- 15.59% more passing tests.
Almost all of those passes came from simplifying the control line of loop and deleting a line of code (though I added one line of comment as explanation). As usual, Moritz gets full credit for identifying a file full of potentially-passing tests.
Delete a line, simplify a line, and over 400 new tests pass. Respect the Parrot.