[clang] [analyzer] Revert incorrect LazyCoumpoundVal changes (PR #163461)

[Donát Nagy via cfe-commits]

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@@ -503,3 +503,75 @@ namespace optional_union {
     custom_union_t a;
   } // leak-warning{{Potential leak of memory pointed to by 'a.present.q'}}
 }
+
+namespace gh153782 {
+
+// Ensure we do not regress on the following use case.
+
+namespace mutually_exclusive_test_case_1 {
+struct StorageWrapper {
+  // Imagine those two call a reset() function (among other things)
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NagyDonat wrote:

What does "those two" refer to in this comment? (Perhaps it's my fault but I have no idea.)

https://github.com/llvm/llvm-project/pull/163461