Implement RFC-413 (#18749)

* Implement RFC 413

* Implement RFC 413

* Implement RFC 413

* Implement RFC 413

* https://github.com/nim-lang/Nim/pull/18749#discussion_r696320995

* Update lib/js/dom_extensions.nim

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

* Update lib/js/dom_extensions.nim

* https://github.com/nim-lang/Nim/pull/18749#discussion_r696913310

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>
Co-authored-by: Andreas Rumpf <rumpf_a@web.de>

changelog.md

@@ -371,6 +371,9 @@
 
 - Added `dom.setInterval`, `dom.clearInterval` overloads.
 
+- Merged `dom_extensions` module into `dom` module,
+  it was a module with a single line, see https://github.com/nim-lang/RFCs/issues/413
+
 - Allow reading parameters when compiling for Nintendo Switch.
 
 - Deprecated `sequtils.delete` and added an overload taking a `Slice` that raises a defect

lib/js/dom.nim

@@ -1771,3 +1771,6 @@ since (1, 3):
     ## https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsDataURL
   proc readAsText*(f: FileReader, b: Blob|File, encoding = cstring"UTF-8") {.importcpp: "#.readAsText(#, #)".}
     ## https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsText
+
+since (1, 5):
+  proc elementsFromPoint*(n: DocumentOrShadowRoot; x, y: float): seq[Element] {.importcpp.}

lib/js/dom_extensions.nim

@@ -1,5 +1,3 @@
 import std/dom
-
-{.push importcpp.}
-proc elementsFromPoint*(n: DocumentOrShadowRoot; x, y: float): seq[Element]
-{.pop.}
+export elementsFromPoint
+{.deprecated: "use `std/dom` instead".}

tests/effects/tstrict_funcs_imports_js.nim

@@ -7,7 +7,6 @@ discard """
 import
   asyncjs,
   dom,
-  dom_extensions,
   jsconsole,
   jsffi,
   jsre