Fix #3736: Remove importInfo site check

Author: nicolasstucki

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

@@ -293,8 +293,7 @@ trait TypeOps { this: Context => // TODO: Make standalone object.
       else toPrefix(sym.owner) + sym.name + "."
     def featureName = toPrefix(owner) + feature
     def hasImport(implicit ctx: Context): Boolean = {
-      if (ctx.importInfo == null || (ctx.importInfo.site.widen.typeSymbol ne owner)) false
-      else if (ctx.importInfo.excluded.contains(feature)) false
+      if (ctx.importInfo == null || ctx.importInfo.excluded.contains(feature)) false
       else if (ctx.importInfo.originals.contains(feature)) true
       else {
         var c = ctx.outer

tests/pos/i3736.scala

@@ -0,0 +1,3 @@
+import scala.language.dynamics
+import scala.Nil
+class Foo() extends Dynamic