Make sure #to:do: operates on the correct block, i.e., same block method

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Update to a new version of Graal

This version is not including the latests CallNode changes in Truffle yet, but fixes in Graal for TruffleSOM.

Signed-off-by: Stefan Marr <git@stefan-marr.de>