Add extra test case for conversion of bs.send.pipe from Reason (rescript-lang#401)

Author: IwanKaramazow

syntax/tests/conversion/reason/attributes.re

@@ -15,4 +15,12 @@ module Color: {
 [1, 2, 3]
   ->map(a => a + 1)
   ->filter(a => modulo(a, 2) == 0)
-  ->Js.log;
+  ->Js.log;
+
+
+type t;
+[@bs.new] external make: unit => t = "DOMParser";
+[@bs.send.pipe: t]
+external parseHtmlFromString: (string, [@bs.as "text/html"] _) => Dom.htmlDocument = "parseFromString";
+
+Js.log(make() |> parseHtmlFromString("sdsd"));

syntax/tests/conversion/reason/expected/attributes.re.txt

@@ -13,3 +13,10 @@ module Color: {
 @send external map: (array<'a>, 'a => 'b) => array<'b> = "map"
 @send external filter: (array<'a>, 'a => 'b) => array<'b> = "filter"
 list{1, 2, 3}->map(a => a + 1)->filter(a => modulo(a, 2) == 0)->Js.log
+
+type t
+@new external make: unit => t = "DOMParser"
+@bs.send.pipe(: t)
+external parseHtmlFromString: (string, @as("text/html") _) => Dom.htmlDocument = "parseFromString"
+
+Js.log(make() |> parseHtmlFromString("sdsd"))