e843d514b1
A few bits of semantic checking need a variant of the ResolveAssociations utility function that stops when hitting a construct entity for a type or class guard. This is necessary for cases like the bug below where the analysis is concerned with the type of the name in context, rather than its shape or storage or whatever. So add a flag to ResolveAssociations and GetAssociationRoot to make this happen, and use it at the appropriate call sites. Fixes https://github.com/llvm/llvm-project/issues/128608.