[clang] [Clang][CWG1815] Support lifetime extension of temporary created by aggregate initialization using a default member initializer (PR #87933)

[Richard Smith via cfe-commits]

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@@ -8194,25 +8216,18 @@ void Sema::checkInitializerLifetime(const InitializedEntity &Entity,
       }
 
       switch (shouldLifetimeExtendThroughPath(Path)) {
+      case PathLifetimeKind::ShouldExtend:
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zygoloid wrote:

Do we need separate `ShouldExtend` and `Extend` kinds still, or can we combine them?

https://github.com/llvm/llvm-project/pull/87933