[clang] [analyzer] Indicate UnarySymExpr is not supported by Z3 (PR #108900)

[Donát Nagy via cfe-commits]

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@@ -0,0 +1,16 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -verify %s \
+// RUN:  -analyzer-constraints=z3 
+
+// REQUIRES: Z3
+//
+// This LIT covers a crash associated with this test.
+// The expectation is to not crash!
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NagyDonat wrote:

```suggestion
// Previously Z3 analysis crashed when it encountered an UnarySymExpr, validate
// that this no longer happens.
```

https://github.com/llvm/llvm-project/pull/108900