Register functions used in local macros as exports

Ideally we want to list them as requires but we don't have
the infrastructure to do so. So meanwhile, we list them
as exports, which is the same level used by require.

lib/elixir/src/elixir_dispatch.erl

@@ -71,7 +71,7 @@ import_function(Meta, Name, Arity, E) ->
           Function = ?key(E, function),
 
           case (Function /= nil) andalso (Function /= Tuple) andalso
-                elixir_def:local_for(?key(E, module), Name, Arity, [defmacro, defmacrop]) of
+                elixir_def:local_for(Meta, Name, Arity, [defmacro, defmacrop], E) of
             false ->
               elixir_env:trace({local_function, Meta, Name, Arity}, E),
               elixir_locals:record_local(Tuple, ?key(E, module), ?key(E, function), Meta, false),
@@ -142,7 +142,7 @@ expand_import(Meta, {Name, Arity} = Tuple, Args, S, E, Extra, External) ->
     _ ->
       AllowLocals = External orelse ((Function /= nil) andalso (Function /= Tuple)),
       Local = AllowLocals andalso
-                elixir_def:local_for(Module, Name, Arity, [defmacro, defmacrop]),
+                elixir_def:local_for(Meta, Name, Arity, [defmacro, defmacrop], E),
 
       case Dispatch of
         %% There is a local and an import. This is a conflict unless