Forgive import ambiguity at level 4 binding

src/compiler/scala/tools/nsc/typechecker/Contexts.scala

@@ -1009,6 +1009,12 @@ trait Contexts { self: Analyzer =>
       )
     }
 
+    private def reconcileAmbiguousImportAndDef(name: Name, imp1: ImportInfo, impSym: Symbol, defSym: Symbol): Boolean = {
+      val res = impSym == defSym
+      if (res) log(s"Suppressing ambiguous import, taking $defSym for $name")
+      res
+    }
+
     /** The symbol with name `name` imported via the import in `imp`,
      *  if any such symbol is accessible from this context.
      */
@@ -1161,6 +1167,9 @@ trait Contexts { self: Analyzer =>
         // Defined symbols take precedence over erroneous imports.
         else if (impSym.isError || impSym.name == nme.CONSTRUCTOR)
           impSym = NoSymbol
+        // Try to reconcile them before giving up, at least if the def is not visible
+        else if (foreignDefined && reconcileAmbiguousImportAndDef(name, imp1, impSym, defSym))
+          impSym = NoSymbol
         // Otherwise they are irreconcilably ambiguous
         else
           return ambiguousDefnAndImport(defSym.alternatives.head.owner, imp1)