hexomethyl

The shadows container within `[libCling.so] clang::BaseUsingDecl::removeShadowDecl DeclCXX.cpp:3082` turns out to be null/invalid 

Currently all the headers used to generate the dictionary are all working via cppyy.include(...), albeit very slowly....

Could it be the type alias referenced in #29, it's nested within a class and was previously causing issues

> Can you try setting: > > ``` > c = cppyy.gbl.CppyyLegacy.TInterpreter.SuspendAutoParsing(cppyy.gbl.gInterpreter) > ``` > > before loading anything? The above is a RAII, so auto-parsing is (should be) disabled...

> Upstream asks whether using a `typedef` instead of `using` makes a difference and to check you included all header files, in particular the STL ones. I'll try that and...

> Firstly, dictionaries may not give you the hoped for speed-up. Upstream has been touting modules for the longest time, but after never quite pulling it off (or getting the...

> There's a file called `allHeaders.h` which you can find under `cppyy_backend/etc/dictpch'. This is used by the `makepch.py` script in the same directory that cppyy calls on startup if the...