Merge branch 'hasse/dialyzer/prettier_warnings/OTP-15135'

* hasse/dialyzer/prettier_warnings/OTP-15135:
  dialyzer: Remove quotes around operators
  dialyzer: Add test cases with indentation
  dialyzer: Add an --no_indentation option
  dialyzer: Add parentheses around annotated union elements
  dialyzer: Fix dialyzer_dataflow:format_args_1()

1 files changed, 41 insertions, 0 deletions

diff --git a/lib/dialyzer/test/indent_SUITE_data/src/fun_app.erl b/lib/dialyzer/test/indent_SUITE_data/src/fun_app.erl
new file mode 100644
index 0000000000..20b6138d26
--- /dev/null
+++ b/lib/dialyzer/test/indent_SUITE_data/src/fun_app.erl
@@ -0,0 +1,41 @@
+%% This is taken from the code of distel.
+
+-module(fun_app).
+-export([html_index/2]). % , lines/3, curry/2]).
+
+html_index(file,Dir) ->
+  fold_file(curry(fun lines/3,Dir),[],filename:join([Dir,"doc","man_index.html"])).
+
+fold_file(Fun,Acc0,File) ->
+  {ok, FD} = file:open(File, [read]),
+  Acc = fold_file_lines(FD,Fun,Acc0),
+  file:close(FD),
+  Acc.
+
+fold_file_lines(FD,Fun,Acc) ->
+  case io:get_line(FD, "") of
+    eof -> Acc;
+    Line -> fold_file_lines(FD,Fun,Fun(trim_nl(Line),Acc))
+  end.
+
+trim_nl(Str) -> lists:reverse(tl(lists:reverse(Str))).
+
+lines(Line,_,Dir) ->
+  case string:tokens(Line, "<> \"") of
+    ["TD", "A", "HREF=", "../"++Href, M|_] ->
+      case filename:basename(Href, ".html") of
+	"index" -> ok;
+	M -> e_set({file,M}, filename:join([Dir,Href]))
+      end;
+    _ -> ok
+  end.
+
+e_set(Key,Val) -> ets:insert(?MODULE, {Key,Val}).
+
+curry(F, Arg) ->
+  case erlang:fun_info(F,arity) of
+    {_,1} -> fun() -> F(Arg) end;
+    {_,2} -> fun(A) -> F(A,Arg) end;
+    {_,3} -> fun(A,B) -> F(A,B,Arg) end;
+    {_,4} -> fun(A,B,C) -> F(A,B,C,Arg) end
+  end.