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

[Donát Nagy via cfe-commits]

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@@ -278,6 +278,13 @@ class SMTConstraintManager : public clang::ento::SimpleConstraintManager {
     if (const SymbolCast *SC = dyn_cast<SymbolCast>(Sym))
       return canReasonAbout(SVB.makeSymbolVal(SC->getOperand()));
 
+    // If a UnarySymExpr is encountered, the Z3
+    // wrapper does not support those. So indicate Z3 does not
+    // support those and return.
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NagyDonat wrote:

```suggestion
    // UnarySymExpr support is not yet implemented in the Z3 wrapper.
```



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