[Lazarus] Code completion and function modifiers & calling conventions

[patspiper]

Currently codetools do not work for procedure/function modifiers and 
calling conventions such as:

override
overload
virtual
forward
external
assembler
inline
nostackframe
alias
pascal
register
safecall
oldfpccall
cdecl
stdcall

Before I submit a bug report:

1- Should these be handled indeed by code completion?

2- Any other ones to add to the list?

Stephano