Merge branch 'maint'

* maint:
  Updated OTP version
  Prepare release
  inets: Add missing release note
  dialyzer: Fix a bug regarding unknown types
  erl_mseg.c: don't use invalid indices in - > cache_powered_node[]
  Fix release note for OTP-14290

Conflicts:
	OTP_VERSION
	erts/emulator/sys/common/erl_mseg.c
	erts/vsn.mk
	lib/dialyzer/src/dialyzer_analysis_callgraph.erl

5 files changed, 36 insertions, 11 deletions

diff --git a/lib/dialyzer/doc/src/notes.xml b/lib/dialyzer/doc/src/notes.xml
index cd4ec4c068..0dbee1ce34 100644
--- a/lib/dialyzer/doc/src/notes.xml
+++ b/lib/dialyzer/doc/src/notes.xml
@@ -32,6 +32,22 @@
   <p>This document describes the changes made to the Dialyzer
     application.</p>
 
+<section><title>Dialyzer 3.1.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p> Report unknown types properly. A bug was introduced
+	    in Erlang/OTP 19.3, where warnings about unknown types
+	    were simply discarded. </p>
+          <p>
+	    Own Id: OTP-14368</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Dialyzer 3.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
index 051b700231..29aa25b98e 100644
--- a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
+++ b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl
@@ -149,7 +149,7 @@ analysis_start(Parent, Analysis, LegalWarnings) ->
         dialyzer_codeserver:finalize_exported_types(MergedExpTypes, TmpCServer1),
       erlang:garbage_collect(), % reduce heap size
       ?timing(State#analysis_state.timing_server, "remote",
-              contracts_and_records(TmpCServer2))
+              contracts_and_records(TmpCServer2, Parent))
     catch
       throw:{error, _ErrorMsg} = Error -> exit(Error)
     end,
@@ -173,15 +173,14 @@ analysis_start(Parent, Analysis, LegalWarnings) ->
                   codeserver = Codeserver0} = State2,
   {Codeserver, MiniPlt3} = move_data(Codeserver0, MiniPlt2),
   dialyzer_callgraph:dispose_race_server(NewCallgraph),
-  rcv_and_send_ext_types(Parent),
   %% Since the PLT is never used, a dummy is sent:
   DummyPlt = dialyzer_plt:new(),
   send_codeserver_plt(Parent, Codeserver, DummyPlt),
   MiniPlt4 = dialyzer_plt:delete_list(MiniPlt3, NonExportsList),
   send_analysis_done(Parent, MiniPlt4, DocPlt).
 
-contracts_and_records(CodeServer) ->
-  Fun = contrs_and_recs(CodeServer),
+contracts_and_records(CodeServer, Parent) ->
+  Fun = contrs_and_recs(CodeServer, Parent),
   {Pid, Ref} = erlang:spawn_monitor(Fun),
   dialyzer_codeserver:give_away(CodeServer, Pid),
   Pid ! {self(), go},
@@ -189,16 +188,17 @@ contracts_and_records(CodeServer) ->
       Return
   end.
 
--spec contrs_and_recs(dialyzer_codeserver:codeserver()) ->
+-spec contrs_and_recs(dialyzer_codeserver:codeserver(), pid()) ->
                          fun(() -> no_return()).
 
-contrs_and_recs(TmpCServer2) ->
+contrs_and_recs(TmpCServer2, Parent) ->
   fun() ->
-      Parent = receive {Pid, go} -> Pid end,
+      Caller = receive {Pid, go} -> Pid end,
       TmpCServer3 = dialyzer_utils:process_record_remote_types(TmpCServer2),
       TmpServer4 =
         dialyzer_contracts:process_contract_remote_types(TmpCServer3),
-      dialyzer_codeserver:give_away(TmpServer4, Parent),
+      dialyzer_codeserver:give_away(TmpServer4, Caller),
+      rcv_and_send_ext_types(Caller, Parent),
       exit(TmpServer4)
   end.
 
@@ -525,13 +525,13 @@ default_includes(Dir) ->
 %% Handle Messages
 %%-------------------------------------------------------------------
 
-rcv_and_send_ext_types(Parent) ->
+rcv_and_send_ext_types(SendTo, Parent) ->
   Self = self(),
   Self ! {Self, done},
   case rcv_ext_types(Self, []) of
     [] -> ok;
     ExtTypes ->
-      Parent ! {Self, ext_types, ExtTypes},
+      Parent ! {SendTo, ext_types, ExtTypes},
       ok
   end.
 
diff --git a/lib/dialyzer/test/options2_SUITE_data/dialyzer_options b/lib/dialyzer/test/options2_SUITE_data/dialyzer_options
index 5db2e50d23..be57e2de72 100644
--- a/lib/dialyzer/test/options2_SUITE_data/dialyzer_options
+++ b/lib/dialyzer/test/options2_SUITE_data/dialyzer_options
@@ -1 +1 @@
-{dialyzer_options, [{defines, [{'vsn', 4}]}, {warnings, [no_return]}]}.
+{dialyzer_options, [{defines, [{'vsn', 4}]}, {warnings, [unknown, no_return]}]}.
diff --git a/lib/dialyzer/test/options2_SUITE_data/results/unknown_type b/lib/dialyzer/test/options2_SUITE_data/results/unknown_type
new file mode 100644
index 0000000000..d308c5a810
--- /dev/null
+++ b/lib/dialyzer/test/options2_SUITE_data/results/unknown_type
@@ -0,0 +1,2 @@
+
+:0: Unknown type unknown:type/0
\ No newline at end of file
diff --git a/lib/dialyzer/test/options2_SUITE_data/src/unknown_type.erl b/lib/dialyzer/test/options2_SUITE_data/src/unknown_type.erl
new file mode 100644
index 0000000000..7a891c0831
--- /dev/null
+++ b/lib/dialyzer/test/options2_SUITE_data/src/unknown_type.erl
@@ -0,0 +1,7 @@
+-module(unknown_type).
+
+-export([t/0]).
+
+-spec t() -> unknown:type().
+t() ->
+    a.