Fix possible reference to past scope warnings

This type of warning was introduced in Ruby 2.2

lib/pry/commands/easter_eggs.rb

@@ -10,17 +10,17 @@ class Pry
     end
 
     command "get-naked", "" do
-      text = %{
+      txt = %{
   --
   We dont have to take our clothes off to have a good time.
   We could dance & party all night And drink some cherry wine.
   -- Jermaine Stewart }
-      output.puts text
-      text
+      output.puts txt
+      txt
     end
 
     command "east-coker", "" do
-      text = %{
+      txt = %{
   --
   Now the light falls
   Across the open field, leaving the deep lane
@@ -34,12 +34,12 @@ class Pry
   Wait for the early owl.
                 -- T.S Eliot
           }
-      output.puts text
-      text
+      output.puts txt
+      txt
     end
 
     command "cohen-poem", "" do
-      text = %{
+      txt = %{
   --
   When this American woman,
   whose thighs are bound in casual red cloth,
@@ -57,8 +57,8 @@ class Pry
   they are lost for hours.
                 -- Leonard Cohen
               }
-      output.puts text
-      text
+      output.puts txt
+      txt
     end
 
     command "pessoa-poem", "" do

lib/pry/method.rb

@@ -359,13 +359,13 @@ class Pry
     #   Paraphrased from `awesome_print` gem.
     def signature
       if respond_to?(:parameters)
-        args = parameters.inject([]) do |arr, (type, name)|
-          name ||= (type == :block ? 'block' : "arg#{arr.size + 1}")
-          arr << case type
-                 when :req   then name.to_s
-                 when :opt   then "#{name}=?"
-                 when :rest  then "*#{name}"
-                 when :block then "&#{name}"
+        args = parameters.inject([]) do |arr, (typ, nam)|
+          nam ||= (typ == :block ? 'block' : "arg#{arr.size + 1}")
+          arr << case typ
+                 when :req   then nam.to_s
+                 when :opt   then "#{nam}=?"
+                 when :rest  then "*#{nam}"
+                 when :block then "&#{nam}"
                  else '?'
                  end
         end

lib/pry/repl.rb

@@ -174,8 +174,8 @@ class Pry
             completions.compact
           end
         elsif input.respond_to? :completion_proc=
-          input.completion_proc = proc do |input|
-            @pry.complete input
+          input.completion_proc = proc do |inp|
+            @pry.complete inp
           end
         end
 

spec/command_integration_spec.rb

@@ -414,13 +414,11 @@ describe "commands" do
       end
     end
 
-    output = StringIO.new
-
-    redirect_pry_io(InputTester.new('def yo', 'hello'), output) do
+    redirect_pry_io(InputTester.new('def yo', 'hello'), @str_output) do
       Pry.start self, :commands => klass
     end
 
-    output.string.should =~ /6/
+    @str_output.string.should =~ /6/
   end
 
   it 'a command (with :keep_retval => true) that replaces eval_string with a valid expression should overwrite the eval_string with the return value' do

spec/prompt_spec.rb

@@ -13,7 +13,7 @@ describe "Prompts" do
     it 'should get full config object, when using a proc array' do
       config1 = nil
       redirect_pry_io(InputTester.new("exit-all")) do
-        Pry.start(self, :prompt => [proc { |v| config1 = v }, proc { |_v| _config2 = v }])
+        Pry.start(self, :prompt => [proc { |v| config1 = v }, proc { |v| _config2 = v }])
       end
       config1.is_a?(Pry::Config).should eq true
     end