Combining --optimize with --no-optimize-yul causes solc to crash

## Environment

- Compiler version: solc 0.8.31

## Steps to Reproduce

Compile the following code using the command `solc a.sol --bin --optimize --no-optimize-yul`

```
contract C {
struct A { string a; }
function f() public returns(A memory) {
A memory t;
return t;
}
}
```

Output:

```
Internal compiler error:
/solidity/libsolidity/interface/CompilerStack.cpp(1796): Throw in function std::string solidity::frontend::CompilerStack::createMetadata(const Contract&, bool) const
Dynamic exception type: boost::wrapexcept
std::exception::what: Solidity assertion failed
[solidity::util::tag_comment*] = Solidity assertion failed
```

Start by reproducing the crash with solc 0.8.31 using the command and contract in the issue. Then inspect CompilerStack.cpp around line 1796, where the assertion is reported, and trace the metadata path for --optimize combined with --no-optimize-yul. Done means the reproduction compiles without an internal compiler error and a regression check covers the command.

Written by the indexing model from the issue text.