ICE when Yul sub-object name with a dot shadows the name of a nested object

[cameel]

Description

Sub-object names in Yul can contain dots. Dots are also used for accessing nested objects. If you try to do both at the same time so that the qualified name of a nested object matches another name that uses a dot, the compiler crashes with an ICE.

Steps to Reproduce

test.yul

object "A" {
    code {}

    object "B" {
        code {}

        object "C" {
            code {}
        }
    }

    object "B.C" {
        code {}
    }
}

Output

solc --strict-assembly test.yul

Uncaught exception:
/solidity/libyul/Object.cpp(99): Throw in function std::set<solidity::yul::YulString> solidity::yul::Object::qualifiedDataNames() const
Dynamic exception type: boost::wrapexcept<solidity::yul::YulAssertion>
std::exception::what: Yul assertion failed
[solidity::util::tag_comment*] = Yul assertion failed

Note that there is no crash if you move the definition B.C above B.

Environment

• Compiler version: 0.8.17