Shafik Yaghmour 2a66ce5edb
[Clang][NFC] Clarify some SourceManager related code (#153527)
Static analysis flagged the columns - 1 code, it was correct but the
assumption was not obvious. I document the assumption w/ assertions.

While digging through related code I found getColumnNumber that looks
wrong at first inspection and adding parentheses makes it clearer.
2025-08-20 13:57:37 -07:00
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