cat --ex now shows code for exceptions raised in the REPL

lib/pry/default_commands/shell.rb

@@ -74,7 +74,6 @@ class Pry
 
         if opts.ex?
           next output.puts "No Exception or Exception has no associated file." if file_name.nil?
-          next output.puts "Cannot cat exceptions raised in REPL." if Pry.eval_path == file_name
         else
           file_name = args.shift
         end

test/test_default_commands/test_shell.rb

@@ -6,8 +6,8 @@ describe "Pry::DefaultCommands::Shell" do
     # this doesnt work so well on rbx due to differences in backtrace
     # so we currently skip rbx until we figure out a workaround
     if !rbx?
-      it 'cat --ex should give warning when exception is raised in repl' do
-        mock_pry("this raises error", "cat --ex").should =~ /Cannot cat exceptions raised in REPL/
+      it 'cat --ex should correctly display code that generated exception even if raised in repl' do
+        mock_pry("this raises error", "cat --ex").should =~ /\d+:(\s*) this raises error/
       end
 
       it 'cat --ex should correctly display code that generated exception' do

test/test_pry.rb

@@ -19,7 +19,6 @@ describe Pry do
 
   if RUBY_VERSION =~ /1.9/
     describe "Exotic object support" do
-
       # regression test for exotic object support
       it "Should not error when return value is a BasicObject instance" do
 
@@ -64,7 +63,7 @@ describe Pry do
         o = Object.new
         pry_tester = Pry.new(:input => StringIO.new(input_string),
                              :output => str_output,
-                             :exception_handler => proc { |_, exception| @excep = exception },
+                             :exception_handler => proc { |_, exception, _pry_| @excep = exception },
                              :print => proc {}
                              ).rep(o)
 
@@ -146,7 +145,6 @@ describe Pry do
         str_output.string.should == ""
       end
 
-
       it 'should suppress output if input ends in a ";" (multi-line)' do
         o = Object.new
         str_output = StringIO.new