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, 2 insertions, 2 deletions

diff --git a/lib/orber/src/orber_diagnostics.erl b/lib/orber/src/orber_diagnostics.erl
index c12dbfa896..c115d79524 100644
--- a/lib/orber/src/orber_diagnostics.erl
+++ b/lib/orber/src/orber_diagnostics.erl
@@ -130,10 +130,10 @@ missing_modules_helper([[Mod, Type]|T], ErrorsFound) when Type == ?IFR_StructDef
     end;
 missing_modules_helper([[Mod, Type]|T], ErrorsFound) when Type == ?IFR_InterfaceDef ->
     case catch Mod:oe_get_interface() of
-	{'EXIT', {undef,[{Mod, _, _}|_]}} ->
+	{'EXIT', {undef,[{Mod, _, _, _}|_]}} ->
 	    io:format("Missing (Interface): ~p~n", [Mod]),
 	    missing_modules_helper(T, ErrorsFound + 1);
-	{'EXIT', {undef,[{OtherMod, _, _}|_]}} ->
+	{'EXIT', {undef,[{OtherMod, _, _, _}|_]}} ->
 	    io:format("Missing (Inherited by the ~p Interface): ~p~n", 
 		      [Mod, OtherMod]),
 	    missing_modules_helper(T, ErrorsFound + 1);