Ghidra: Incorrect root namespaces on demangled methods

[astrelsky]

Describe the bug
Some demangled methods have the wrong root namespace. This is most notable on overloaded operators.

To Reproduce
Steps to reproduce the behavior:

1. Demangle _ZNSolsEPFRSoS_E
2. See result of >::operator<<(std--basic_ostream<char,std--char_traits<char>>&(*)(std::basic_ostream<char,std::char_traits<char> &)

Expected behavior
_ZNSolsEPFRSoS_E should be demangled to std::basic_ostream<char, std::char_traits<char> >::operator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))

Environment (please complete the following information):

• OS: Microsoft Windows [Version 10.0.18363.720]
• Java Version: 13.0.2
• Ghidra Version: 9.2

Additional context
@dragonmacher I know a lot of work was recently done in the ghidra.app.util.demangler package, just making a note of this.

[dragonmacher]

I will investigate.

[GhidorahRex]

Fixed in c1a148298862e3ae2fa418149423ba26311dd11c