[clang] [analyzer] Fix unary/binary op support for SMT symbolic execution (PR #205078)

[Balázs Benics via cfe-commits]

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@@ -171,6 +182,15 @@ class SMTConstraintManager : public clang::ento::SimpleConstraintManager {
       return BVF.Convert(SC->getType(), *Value).get();
     }
 
+    if (const UnarySymExpr *USE = dyn_cast<UnarySymExpr>(Sym)) {
+      SymbolRef Operand = USE->getOperand();
+      const llvm::APSInt *Value;
+      if (!(Value = getSymVal(State, Operand)))
----------------
steakhal wrote:

```suggestion
      const llvm::APSInt *Value;
      if (!(Value = getSymVal(State, USE->getOperand())))
```

https://github.com/llvm/llvm-project/pull/205078