[stdlib, 6.2] fix some unsafe errors #82844
Merged
+13
−6
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Explanation:
Fix incorrect uses of MutableSpan's and MutableRawSpan's internal _start() functions. Either using the _pointer stored property is the safe approach, or some other precondition was missing.
Resolves: rdar://155198823 (Unwarranted unsafe optional unwrap in MutableSpan implementation #82829)
Risk: low
Main branch PR: [stdlib] fix some unsafe errors #82828
Reviewed by: @Catfish-Man
Testing: existing tests