Please describe the problem:
This code triggers some strange behavior in the Vala compiler.
First, I get a warning saying:
main.vala:17.10-19.2: warning: unreachable catch clause detected
However, there is no corresponding warning for the other upper catch clause.
I believe both of these catch clauses are valid and should be reachable.
I was using valac 0.4.0 on ubuntu when I found this issue.

int main (string[] args)
{
        try {
                GLib.File my_file = File.new_for_path ("this_file_does_not_exist");
                GLib.FileInputStream file_stream = my_file.read (null);
                GLib.DataInputStream elf_stream = new DataInputStream (file_stream);
                stdout.printf ("whee\n");
        } catch (GLib.Error e) {
                stdout.printf ("doh\n");
        }

        try {
                GLib.File my_file = File.new_for_path ("this_file_does_not_exist");
                GLib.DataInputStream my_stream = new DataInputStream (my_file.read (null));
                stdout.printf ("whee\n");
        } catch (GLib.Error e) {
                stdout.printf ("doh\n");
        }

        return 0;
}


Steps to reproduce:
1. 
2. 
3. 


Actual results:


Expected results:


Does this happen every time?


Other information: