Disable the undefOr2ops import

It takes precedence over other implicit conversions like
scala.scalajs.js.ArrayOps and therefore breaks stuff

Author: smarter

compiler/src/dotty/tools/dotc/core/Definitions.scala

@@ -1367,7 +1367,7 @@ class Definitions {
     else if !ctx.settings.scalajs.value then
       ScalaImportFns :+ PredefImportFns
     else
-      ScalaImportFns :+ PredefImportFns :+ ScalaJsRootImportFn
+      ScalaImportFns :+ PredefImportFns// :+ ScalaJsRootImportFn
 
   @tu private lazy val JavaRootImportTypes: List[TermRef] = JavaRootImportFns.map(_.refFn())
   @tu private lazy val ScalaRootImportTypes: List[TermRef] = ScalaRootImportFns.map(_.refFn())