current symbol table entry
number of errors */ /// Availability: 2.
name of file being compiled
module's future features
borrowed ref to MODULE in st_symbols
number of blocks */ /// Availability: >= 2.
number of scopes */ /// Availability: 2.
pass == 1 or 2 */ /// Availability: 2.
name of current class or NULL */ /// Availability: >= 2.
name of current class or NULL */ /// Availability: 2.
stack of namespace info
dictionary of symbol table entries
temporary name counter */ /// Availability: >= 2.
Availability: >= 2.5
_