Fix Windows encoding problems

lib/pry/code/code_file.rb

@@ -31,7 +31,7 @@ class CodeFile
 
     # Store the current working directory. This allows show-source etc. to work if
     # your process has changed directory since boot. [Issue #675]
-    INITIAL_PWD = Dir.pwd
+    INITIAL_PWD = Dir.pwd.encode('UTF-8')
 
     # @return [Symbol] The type of code stored in this wrapper.
     attr_reader :code_type
@@ -98,7 +98,7 @@ def type_from_filename(filename, default = :unknown)
 
     # @return [String]
     def from_pwd
-      File.expand_path(@filename, Dir.pwd)
+      File.expand_path(@filename, Dir.pwd.encode('UTF-8'))
     end
 
     # @return [String]

lib/pry/commands/shell_command.rb

@@ -41,7 +41,7 @@ def parse_destination(dest)
       end
 
       def process_cd(dest)
-        state.old_pwd = Dir.pwd
+        state.old_pwd = Dir.pwd.encode('UTF-8')
         Dir.chdir(File.expand_path(path_from_cd_path(dest) || dest))
       rescue Errno::ENOENT
         raise CommandError, "No such directory: #{dest}"

lib/pry/commands/whereami.rb

@@ -86,7 +86,7 @@ def bad_option_combination?
       end
 
       def location
-        "#{@file}:#{@line} #{@method && @method.name_with_owner}"
+        "#{@file.encode('UTF-8')}:#{@line} #{@method && @method.name_with_owner}"
       end
 
       def process

lib/pry/prompt.rb

@@ -200,7 +200,7 @@ def [](key)
         "%<name>s %<context>s:%<pwd>s %<separator>s ",
         name: pry_instance.config.prompt_name,
         context: Pry.view_clip(context),
-        pwd: Dir.pwd,
+        pwd: Dir.pwd.encode('UTF-8'),
         separator: sep
       )
     end