emulator: Add a fourth element in exception stacktraces

This commit is a preparation for introducing location information
(filename/line number) in stacktraces in exceptions. Currently
a stack trace looks like:

  [{Mod1,Function1,Arity1},
   .
   .
   .
   {ModN,FunctionN,ArityN}]

Add a forth element to each tuple that can be used indication
the filename and line number of the source file:

  [{Mod1,Function1,Arity1,Location1},
   .
   .
   .
   {ModN,FunctionN,ArityN,LocationN}]

In this commit, the fourth element will just be an empty list,
and we will change all code that look at or manipulate stacktraces.

1 files changed, 8 insertions, 8 deletions

diff --git a/lib/kernel/test/code_SUITE.erl b/lib/kernel/test/code_SUITE.erl
index 3ad49254f1..531ce780a9 100644
--- a/lib/kernel/test/code_SUITE.erl
+++ b/lib/kernel/test/code_SUITE.erl
@@ -984,9 +984,9 @@ purge_stacktrace(Config) when is_list(Config) ->
 	error:function_clause ->
 	    ?line code:load_file(code_b_test),
 	    ?line case erlang:get_stacktrace() of
-		      [{?MODULE,_,[a]},
-		       {code_b_test,call,2},
-		       {?MODULE,purge_stacktrace,1}|_] ->
+		      [{?MODULE,_,[a],_},
+		       {code_b_test,call,2,_},
+		       {?MODULE,purge_stacktrace,1,_}|_] ->
 			  ?line false = code:purge(code_b_test),
 			  ?line [] = erlang:get_stacktrace()
 		  end
@@ -996,8 +996,8 @@ purge_stacktrace(Config) when is_list(Config) ->
 	error:function_clause ->
 	    ?line code:load_file(code_b_test),
 	    ?line case erlang:get_stacktrace() of
-		      [{code_b_test,call,[nofun,2]},
-		       {?MODULE,purge_stacktrace,1}|_] ->
+		      [{code_b_test,call,[nofun,2],_},
+		       {?MODULE,purge_stacktrace,1,_}|_] ->
 			  ?line false = code:purge(code_b_test),
 			  ?line [] = erlang:get_stacktrace()
 		  end
@@ -1008,8 +1008,8 @@ purge_stacktrace(Config) when is_list(Config) ->
 	error:badarg ->
 	    ?line code:load_file(code_b_test),
 	    ?line case erlang:get_stacktrace() of
-		      [{code_b_test,call,Args},
-		       {?MODULE,purge_stacktrace,1}|_] ->
+		      [{code_b_test,call,Args,_},
+		       {?MODULE,purge_stacktrace,1,_}|_] ->
 			  ?line false = code:purge(code_b_test),
 			  ?line [] = erlang:get_stacktrace()
 		  end
@@ -1470,7 +1470,7 @@ do_on_load_error(ReturnValue) ->
     ?line ErrorPid ! ReturnValue,
     receive
 	{'DOWN',Ref,process,_,Exit} ->
-	    ?line {undef,[{on_load_error,main,[]}|_]} = Exit
+	    ?line {undef,[{on_load_error,main,[],_}|_]} = Exit
     end.
 
 native_early_modules(suite) -> [];