Fixes & workarounds to compile on Nim 2.0.0

* Import punycode, as it has been removed from stdlib.
* Fix some syntax errors
* Apparently you can no longer compare distinct pointers with nil.
  Add explicit comparisons with typeof(nil) instead.
* htmlparser: rename _ to other, as semantics of _ have changed.
  (Quite a shame, it looked better with _. Oh well.)
* Explicitly specify mm:refc, as the browser OOMs with orc for
  some reason.

Confirmed to compile & run on 2.0.0, 1.6.14, 1.6.12, 1.6.10 and 1.6.8.
(<1.6.8 it's broken & wontfix.)

2 files changed, 4 insertions, 1 deletions

diff --git a/src/io/promise.nim b/src/io/promise.nim
index ba1dad07..ee4f0654 100644
--- a/src/io/promise.nim
+++ b/src/io/promise.nim
@@ -22,6 +22,9 @@ type
     tab: Table[int, EmptyPromise]
     opaque*: pointer
 
+proc newPromise*[T](): Promise[T] =
+  return Promise[T]()
+
 proc newPromiseMap*(opaque: pointer): PromiseMap =
   return PromiseMap(
     opaque: opaque
diff --git a/src/io/response.nim b/src/io/response.nim
index 6a5a5bbf..b64f1504 100644
--- a/src/io/response.nim
+++ b/src/io/response.nim
@@ -49,7 +49,7 @@ proc close*(response: Response) {.jsfunc.} =
 
 proc text*(response: Response): Promise[Result[string, JSError]] {.jsfunc.} =
   if response.bodyRead == nil:
-    let p = Promise[Result[string, JSError]]()
+    let p = newPromise[Result[string, JSError]]()
     let err = Result[string, JSError]
       .err(newTypeError("Body has already been consumed"))
     p.resolve(err)