Revert "drive by cleanup"

This reverts commit 73105182565b9539d24a842b82b7416dc101f2f4.

Author: staabm

src/Analyser/MutatingScope.php

@@ -2006,7 +2006,7 @@ public function issetCheck(Expr $expr, callable $typeCallback, ?bool $result = n
 return false;
 }
 
-// If offset cannot be null, store this error message and see if one of the earlier offsets is.
+// If offset is cannot be null, store this error message and see if one of the earlier offsets is.
 // E.g. $array['a']['b']['c'] ?? null; is a valid coalesce if a OR b or C might be null.
 if ($hasOffsetValue->yes()) {
 $result = $typeCallback($type->getOffsetValueType($dimType));