Properly track imported function calls in tracer

Closes #13878.

Author: josevalim

Diff for: lib/elixir/src/elixir_dispatch.erl

@@ -208,7 +208,9 @@ do_expand_import(Result, Meta, Name, Arity, Module, E, Trace) ->
     {import, Receiver} ->
       case expand_require(true, Meta, Receiver, Name, Arity, E, Trace) of
         {macro, _, _} = Response -> Response;
-        error -> {function, Receiver, Name}
+        error ->
+          Trace andalso elixir_env:trace({remote_function, Meta, Receiver, Name, Arity}, E),
+          {function, Receiver, Name}
       end;
     false when Module == ?kernel ->
       case elixir_rewrite:inline(Module, Name, Arity) of

Diff for: lib/elixir/test/elixir/kernel/lexical_tracker_test.exs

@@ -523,6 +523,56 @@ defmodule Kernel.LexicalTrackerTest do
       refute URI in runtime
     end
 
+    test "imported functions from quote adds dependencies" do
+      {{compile, exports, runtime, _}, _binding} =
+        Code.eval_string("""
+        defmodule Kernel.LexicalTrackerTest.QuotedFun do
+          import URI
+
+          defmacro parse_root() do
+            quote do
+              parse("/")
+            end
+          end
+        end
+
+        defmodule Kernel.LexicalTrackerTest.UsingQuotedFun do
+          require Kernel.LexicalTrackerTest.QuotedFun, as: QF
+          QF.parse_root()
+          Kernel.LexicalTracker.references(__ENV__.lexical_tracker)
+        end |> elem(3)
+        """)
+
+      assert URI in compile
+      refute URI in exports
+      refute URI in runtime
+    end
+
+    test "imported macro from quote adds dependencies" do
+      {{compile, exports, runtime, _}, _binding} =
+        Code.eval_string("""
+        defmodule Kernel.LexicalTrackerTest.QuotedMacro do
+          import Config
+
+          defmacro config_env() do
+            quote do
+              config_env()
+            end
+          end
+        end
+
+        defmodule Kernel.LexicalTrackerTest.UsingQuotedMacro do
+          require Kernel.LexicalTrackerTest.QuotedMacro, as: QM
+          def fun(), do: QM.config_env()
+          Kernel.LexicalTracker.references(__ENV__.lexical_tracker)
+        end |> elem(3)
+        """)
+
+      assert Config in compile
+      refute Config in exports
+      refute Config in runtime
+    end
+
     test "defimpl does not add dependencies on for only on impl" do
       {{compile, exports, runtime, _}, _binding} =
         Code.eval_string("""