merge branch 'maint'

* upstream/maint:
  maint: post-release administrivia
  version 3.5.3
  news: update for 3.5.3
  yacc.c: make sure we properly propagated the user's number for error
  diagnostics: don't crash because of repeated definitions of error
  style: initialize some struct members
  diagnostics: beware of zero-width characters
  diagnostics: be sure to close the styling when lines are too short
  muscles: fix incorrect decoding of $
  code: be robust to reference with invalid tags
  build: fix typo
  doc: update recommandation for libtextstyle
  style: comment changes
  examples: use consistently the GFDL header for readmes
  style: remove useless declarations
  typo: succesful -> successful
  README: point to tests/bison, and document --trace
  gnulib: update
  maint: post-release administrivia

src/symtab.c

@@ -77,10 +77,12 @@ sym_content_new (symbol *s)
   res->symbol = s;
 
   res->type_name = NULL;
+  res->type_loc = empty_loc;
   for (int i = 0; i < CODE_PROPS_SIZE; ++i)
     code_props_none_init (&res->props[i]);
 
   res->number = NUMBER_UNDEFINED;
+  res->prec_loc = empty_loc;
   res->prec = 0;
   res->assoc = undef_assoc;
   res->user_token_number = USER_NUMBER_UNDEFINED;
@@ -539,7 +541,10 @@ symbol_class_set (symbol *sym, symbol_class class, location loc, bool declaring)
                            _("previous declaration"));
             }
           else
-            s->status = declared;
+            {
+              sym->location = loc;
+              s->status = declared;
+            }
         }
     }
 }