[clang] [LifetimeSafety] Add additional test for buildOriginFlowChain (PR #204124)

[Utkarsh Saxena via cfe-commits]

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@@ -1250,6 +1250,16 @@ void conditional_operator_lifetimebound_nested_deep(bool cond) {
   (void)*p;  // expected-note 4 {{later used here}}
 }
 
+void simpleparen() {
+  MyObj* p;
+  {
+    MyObj a;
+    MyObj* b = &a;  // expected-warning {{local variable 'a' does not live long enough}}
+    p = (((b)));
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usx95 wrote:

Let us not commit to a solution in the FIXME. Just documenting the expected behaviour should be fine. 

https://github.com/llvm/llvm-project/pull/204124