bug#55572: Properly indent Python PEP634 match/case blocks

[Lele Gaifax]

Hi,

PEP634, introduced in Python 3.10, added two new keywords, "match"
and "case". Commit 139042eb8629e6fd49b2c3002a8fc4d1aabd174d added them to the
font-lock machinery, but missed the opportunity to configure them as
block-starter as well.

The attached patch does that, adding also two simple indentation tests.

All the best,
ciao, lele.

0001-Properly-indent-Python-PEP634-match-case-blocks.patch
Description: Text Data

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nickname: Lele Gaifax | Quando vivrò di quello che ho pensato ieri
real: Emanuele Gaifas | comincerò ad aver paura di chi mi copia.
lele@metapensiero.it  |                 -- Fortunato Depero, 1929.