Try to fix https://github.com/llvm/llvm-project/issues/75221
This crash caused by calculating record layout which contains a field
declaration with dependent type. Make it invalid before it is a complete
definition to prevent this crash. Define a new scope type to record this
type alias and set the record declaration invalid when it is defined in
a type alias template.
Co-authored-by: huqizhi <836744285@qq.com>