remove deprecated type pragma syntax, fix bugs that required it (#20199)

* remove deprecated pragma syntax from 0.20.0

closes #4651, closes #16653 with a cheap fix for now due to
how early `tfFinal` is set

* remove type pragma between name and generics

* undo removal, try removing bind expression (0.8.14)

* fix test, unremove bind expr

* remove again

* Update changelog.md

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>

* dependencies @ HEAD & weave test dependencies

* try fix package ci

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>

tests/cpp/tdont_init_instantiation.nim

@@ -20,7 +20,7 @@ template <typename X> class C {
 };
 """.}
 
-type C{.importcpp, header: "<stdio.h>", nodecl.} [X] = object
+type C[X] {.importcpp, header: "<stdio.h>", nodecl.} = object
 proc mkC[X]: C[X] {.importcpp: "C<'*0>()", constructor, nodecl.}
 
 proc foo(): C[int] =

tests/cpp/temitlist.nim

@@ -8,7 +8,7 @@ disabled: "windows" # pending bug #18011
 
 # bug #4730
 
-type Vector* {.importcpp: "std::vector", header: "<vector>".}[T] = object
+type Vector*[T] {.importcpp: "std::vector", header: "<vector>".} = object
 
 template `[]=`*[T](v: var Vector[T], key: int, val: T) =
   {.emit: [v, "[", key, "] = ", val, ";"].}

tests/cpp/tvector_iterator.nim

@@ -12,8 +12,8 @@ struct Vector {
 """.}
 
 type
-  Vector {.importcpp: "Vector".} [T] = object
-  VectorIterator {.importcpp: "Vector<'0>::Iterator".} [T] = object
+  Vector[T] {.importcpp: "Vector".} = object
+  VectorIterator[T] {.importcpp: "Vector<'0>::Iterator".} = object
 
 var x: VectorIterator[void]