[clang] [LifetimeSafety] Model pointer-to-data-member access in the fact generator (PR #204612)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- clang/lib/Analysis/LifetimeSafety/FactsGenerator.cpp clang/test/Sema/LifetimeSafety/safety.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Analysis/LifetimeSafety/FactsGenerator.cpp b/clang/lib/Analysis/LifetimeSafety/FactsGenerator.cpp
index 65ec736c6..2ca6484d5 100644
--- a/clang/lib/Analysis/LifetimeSafety/FactsGenerator.cpp
+++ b/clang/lib/Analysis/LifetimeSafety/FactsGenerator.cpp
@@ -470,8 +470,8 @@ void FactsGenerator::handlePointerArithmetic(const BinaryOperator *BO) {
 void FactsGenerator::VisitBinaryOperator(const BinaryOperator *BO) {
   if (BO->getOpcode() == BO_PtrMemD || BO->getOpcode() == BO_PtrMemI) {
     // `obj.*pm` / `objptr->*pm` names a member of the object, so a borrow of it
-    // borrows the object; flow the object's origin into the result. For `.*` the
-    // object is the LHS; for `->*` it is the LHS pointer's pointee.
+    // borrows the object; flow the object's origin into the result. For `.*`
+    // the object is the LHS; for `->*` it is the LHS pointer's pointee.
     OriginList *Dst = getOriginsList(*BO);
     OriginList *ObjSrc =
         BO->getOpcode() == BO_PtrMemD

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https://github.com/llvm/llvm-project/pull/204612