include sys/types.h for size_t.


git-svn-id: https://root.cern.ch/svn/root/trunk@48700 27541ba8-7e3a-0410-8455-c3a389f83636
Create and initialize the type source info. Avoids crashes in the AST build by
the dynamic scopes.


git-svn-id: https://root.cern.ch/svn/root/trunk@48701 27541ba8-7e3a-0410-8455-c3a389f83636