Merge branch 'ta/typer-quote-atoms' into dev

* ta/typer-quote-atoms:
  Update Dialyzer's reference results
  Quote atoms if necessary in types

OTP-9560

1 files changed, 11 insertions, 5 deletions

diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 1748c1cc16..7ff170776e 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -211,7 +211,8 @@
 	 record_field_diffs_to_string/2,
 	 subst_all_vars_to_any/1,
 	 lift_list_to_pos_empty/1,
-	 is_erl_type/1
+	 is_erl_type/1,
+	 atom_to_string/1
 	]).
 
 %%-define(DO_ERL_TYPES_TEST, true).
@@ -3360,14 +3361,14 @@ t_to_string(?var(Id), _RecDict) when is_integer(Id) ->
 
 record_to_string(Tag, [_|Fields], FieldNames, RecDict) ->
   FieldStrings = record_fields_to_string(Fields, FieldNames, RecDict, []),
-  "#" ++ atom_to_list(Tag) ++ "{" ++ string:join(FieldStrings, ",") ++ "}".
+  "#" ++ atom_to_string(Tag) ++ "{" ++ string:join(FieldStrings, ",") ++ "}".
 
 record_fields_to_string([F|Fs], [{FName, _DefType}|FDefs], RecDict, Acc) ->
   NewAcc =
     case t_is_any(F) orelse t_is_atom('undefined', F) of
       true -> Acc;
       false ->
-	StrFV = atom_to_list(FName) ++ "::" ++ t_to_string(F, RecDict),
+	StrFV = atom_to_string(FName) ++ "::" ++ t_to_string(F, RecDict),
 	%% ActualDefType = t_subtract(DefType, t_atom('undefined')),
 	%% Str = case t_is_any(ActualDefType) of
 	%% 	  true -> StrFV;
@@ -3393,7 +3394,7 @@ field_diffs([F|Fs], [{FName, DefType}|FDefs], RecDict, Acc) ->
     case t_is_subtype(F, DefType) of
       true -> Acc;
       false ->
-	Str = atom_to_list(FName) ++ "::" ++ t_to_string(DefType, RecDict),
+	Str = atom_to_string(FName) ++ "::" ++ t_to_string(DefType, RecDict),
 	[Str|Acc]
     end,
   field_diffs(Fs, FDefs, RecDict, NewAcc);
@@ -3906,7 +3907,7 @@ t_form_to_string({type, _L, union, Args}) ->
   string:join(t_form_to_string_list(Args), " | ");
 t_form_to_string({type, _L, Name, []} = T) ->
   try t_to_string(t_from_form(T))
-  catch throw:{error, _} -> atom_to_list(Name) ++ "()"
+  catch throw:{error, _} -> atom_to_string(Name) ++ "()"
   end;
 t_form_to_string({type, _L, Name, List}) -> 
   io_lib:format("~w(~s)",
@@ -3920,6 +3921,11 @@ t_form_to_string_list([H|T], Acc) ->
 t_form_to_string_list([], Acc) ->
   lists:reverse(Acc).
 
+-spec atom_to_string(atom()) -> string().
+
+atom_to_string(Atom) ->
+  lists:flatten(io_lib:format("~w", [Atom])).
+
 %%=============================================================================
 %% 
 %% Utilities