Add case for Inlined to TypedTreeCopier

The missing case was discovered after inlining `implicitly`. It produced
a type mismatch in Ycheck after lambda lift.

Author: odersky

compiler/src/dotty/tools/dotc/ast/tpd.scala

@@ -560,6 +560,15 @@ object tpd extends Trees.Instance[Type] with TypedTreeInfo {
       }
     }
 
+    override def Inlined(tree: Tree)(call: Tree, bindings: List[MemberDef], expansion: Tree)(implicit ctx: Context): Inlined = {
+      val tree1 = untpd.cpy.Inlined(tree)(call, bindings, expansion)
+      tree match {
+        case tree: Inlined if sameTypes(bindings, tree.bindings) && (expansion.tpe eq tree.expansion.tpe) =>
+          tree1.withTypeUnchecked(tree.tpe)
+        case _ => ta.assignType(tree1, bindings, expansion)
+      }
+    }
+
     override def SeqLiteral(tree: Tree)(elems: List[Tree], elemtpt: Tree)(implicit ctx: Context): SeqLiteral = {
       val tree1 = untpd.cpy.SeqLiteral(tree)(elems, elemtpt)
       tree match {