fixes #19795; fixes #11852; fixes #19974; remove parsing pipeline, Nim now parses the whole module at one time (#21379)

* fixes #19795; remove parse pipeline

* isScript

* fixes nimscriptapi

* don't touch reorder

* check script

* fixes tests

* it seems implicit imports of system cause troubles

* access the first child of `nkStmtList`

* ignore comments

* minor messages

* perhaps increases hloLoopDetector

* the module is a stmtList, which changes the errors

* fixes nimdoc

* fixes tlinter

* fixes nim  secret tests

* fixes arc_misc

* fixes nim secret tests again

* safe; fixes one more test

* GlobalError is the root cause too

* fixes parsing errors

* put emit types to the cfsForwardTypes section

* fixes #11852; `{.push checks:off}` now works in procs

* disable navigator

* fixes nimdoc

* add tests for JS

* fixes nimsuggest

tests/modules/t8665.nim

@@ -1,4 +1,5 @@
 discard """
+  matrix: "--experimental:codeReordering"
   action: compile
 """
 

tests/modules/treorder.nim

@@ -1,5 +1,5 @@
 discard """
-  cmd: "nim -d:testdef $target $file"
+  matrix: "--experimental:codeReordering -d:testdef"
   output: '''works 34
 34
 defined