add record PartitioningInfo

to reduce memory usage of the compiler

if the forwarding pointer has been used and is later replaced by &bottom

keep case_explicit, instead of setting case_explicit to False for all
Case expressions (including cases not usings dynamics) in functions
using dynamics.

use record DefCounts with cons_count, sel_count, mem_count and type_count, instead of separate arguments

prevent unnecessary eval's of partial function calls,
prevent thunk lifting of strict constructors with constant and evaluated arguments

don't generate type representation in TD; functions,
use TypeCodeConstructor and TD_ constructors instead of TypeCodeConstructor.. functions

g
  # (_,a=:b) = g
  = (a,b)

if the cached type contained a generic type context, the compiler could crash

(reallocate if necessary)

without scope==cGlobalScope errors are reported about predefined symbols (for example _Nil)

adjust imports