llvm-project

2caf4c1b - [AST] Fix an assertion failure in TypeName::getFullyQualifiedName (#159312)

[AST] Fix an assertion failure in TypeName::getFullyQualifiedName (#159312) This popped up during our internal integrates of upstream changes. It started happening after ba9d1c41c41d568a798e0a8c38a89d294647c28d, which started using `TemplateSpecializationType` in this place and the code was not prepared to handle it.