[clang] [Sema] Fix false positive warnings for misaligned member access (PR #150025)

[Vladimir Vuksanovic via cfe-commits]

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@@ -6765,6 +6762,10 @@ class Sema final : public SemaBase {
     /// InLifetimeExtendingContext is true.
     SmallVector<MaterializeTemporaryExpr *, 8> ForRangeLifetimeExtendTemps;
 
+    /// Small set of gathered accesses to potentially misaligned members
+    /// due to the packed attribute.
+    SmallVector<MisalignedMember, 4> MisalignedMembers;
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vvuksanovic wrote:

For some reason github doesn't show it, but it is moved inside the `ExpressionEvaluationContextRecord` class so we have one list per evaluation context.

https://github.com/llvm/llvm-project/pull/150025