IC: green tests (#17311)

* IC: renamed to_packed_ast module to ic module

* IC: don't store the --forceBuild flag, makes it easier to test

* IC: enable hello world test

* Codegen: refactorings for IC; changed the name mangling algorithm

* fixed the HCR regressions

* life is too short for HCR

* tconvexhull is now allowed to use deepCopy

* IC exposed a stdlib bug, required a refactoring

* codegen: code cleanups

* IC: even if a module is outdated, its dependencies might come from disk

* IC: progress

* IC: better name mangling, module IDs are not stable

* IC: another refactoring helping with --ic:on --gc:arc

* disable arraymancer on Windows for the time being

* disable arraymancer altogether

* IC: make basic test work with 'nim cpp'

* IC: progress on --ic:on --gc:arc

* wip; name mangling for type info

compiler/ast.nim

@@ -1416,7 +1416,7 @@ proc newType*(kind: TTypeKind, id: ItemId; owner: PSym): PType =
                  lockLevel: UnspecifiedLockLevel,
                  uniqueId: id)
   when false:
-    if result.id == 76426:
+    if result.itemId.module == 55 and result.itemId.item == 2:
       echo "KNID ", kind
       writeStackTrace()