Revert "Revert "Name compiled render methods". This caused several failures on...

Revert "Revert "Name compiled render methods". This caused several failures on AP test suite for 1.9.2."

This reverts commit 9013227e.

minitest was 'running' compiled templates beginning with test!

actionpack/lib/action_view/template.rb

@@ -156,11 +156,12 @@ def counter_name
     end
 
     def inspect
-      if defined?(Rails.root)
-        identifier.sub("#{Rails.root}/", '')
-      else
-        identifier
-      end
+      @inspect ||=
+        if defined?(Rails.root)
+          identifier.sub("#{Rails.root}/", '')
+        else
+          identifier
+        end
     end
 
     private
@@ -267,9 +268,11 @@ def #{method_name}(local_assigns)
       end
 
       def build_method_name(locals)
-        # TODO: is locals.keys.hash reliably the same?
-        @method_names[locals.keys.hash] ||=
-          "_render_template_#{@identifier.hash}_#{__id__}_#{locals.keys.hash}".gsub('-', "_")
+        @method_names[locals.keys.hash] ||= "_#{identifier_method_name}__#{@identifier.hash}_#{__id__}_#{locals.keys.hash}".gsub('-', "_")
+      end
+
+      def identifier_method_name
+        @identifier_method_name ||= inspect.gsub(/[^a-z_]/, '_')
       end
   end
 end