Update checker to v2 as representation has changed

Author: josevalim

lib/elixir/lib/module/parallel_checker.ex

@@ -423,7 +423,7 @@ defmodule Module.ParallelChecker do
       mode =
         with {^module, binary, _filename} <- object_code,
              {:ok, {^module, [{~c"ExCk", chunk}]}} <- :beam_lib.chunks(binary, [~c"ExCk"]),
-             {:elixir_checker_v1, contents} <- :erlang.binary_to_term(chunk) do
+             {:elixir_checker_v2, contents} <- :erlang.binary_to_term(chunk) do
           # The chunk has more information, so that's our preference
           cache_chunk(table, module, contents)
         else

lib/elixir/src/elixir_erl.erl

@@ -662,7 +662,7 @@ checker_chunk(Map, Def, ChunkOpts) ->
     end
   },
 
-  [{<<"ExCk">>, term_to_binary({elixir_checker_v1, Contents}, ChunkOpts)}].
+  [{<<"ExCk">>, term_to_binary({elixir_checker_v2, Contents}, ChunkOpts)}].
 
 prepend_behaviour_info(true, Def) -> [{{behaviour_info, 1}, []} | Def];
 prepend_behaviour_info(false, Def) -> Def.

lib/elixir/test/elixir/module/types/integration_test.exs

@@ -1538,7 +1538,7 @@ defmodule Module.Types.IntegrationTest do
 
   defp read_chunk(binary) do
     assert {:ok, {_module, [{~c"ExCk", chunk}]}} = :beam_lib.chunks(binary, [~c"ExCk"])
-    assert {:elixir_checker_v1, map} = :erlang.binary_to_term(chunk)
+    assert {:elixir_checker_v2, map} = :erlang.binary_to_term(chunk)
     map
   end
 

lib/elixir/test/elixir/protocol/consolidation_test.exs

@@ -165,7 +165,7 @@ defmodule Protocol.ConsolidationTest do
 
     defp exports(binary) do
       {:ok, {_, [{~c"ExCk", check_bin}]}} = :beam_lib.chunks(binary, [~c"ExCk"])
-      assert {:elixir_checker_v1, contents} = :erlang.binary_to_term(check_bin)
+      assert {:elixir_checker_v2, contents} = :erlang.binary_to_term(check_bin)
       Map.new(contents.exports)
     end