Rename auto_detect_failures fixture files

Author: Steve Kirkland

test/browser/features/auto_detect_errors.feature

@@ -2,7 +2,7 @@
 Feature: Switching off automatic reporting
 
 Scenario: setting autoDetectErrors option to false
-  When I navigate to the test URL "/auto_detect_errors/script/a.html"
+  When I navigate to the test URL "/auto_detect_errors/script/autodetect_false.html"
   Then I wait to receive an error
   And the error is a valid browser payload for the error reporting API
   And the event "unhandled" is false
@@ -11,7 +11,7 @@ Scenario: setting autoDetectErrors option to false
   And the exception "type" equals "browserjs"
 
 Scenario: setting enabledErrorTypes.unhandledExceptions option to false
-  When I navigate to the test URL "/auto_detect_errors/script/b.html"
+  When I navigate to the test URL "/auto_detect_errors/script/unhandled_exceptions_false.html"
   Then I wait to receive an error
   And the error is a valid browser payload for the error reporting API
   And the event "unhandled" is false
@@ -20,7 +20,7 @@ Scenario: setting enabledErrorTypes.unhandledExceptions option to false
   And the exception "type" equals "browserjs"
 
 Scenario: setting enabledErrorTypes.unhandledRejections option to false
-  When I navigate to the test URL "/auto_detect_errors/script/c.html"
+  When I navigate to the test URL "/auto_detect_errors/script/unhandled_rejections_false.html"
   And the test should run in this browser
   Then I wait to receive an error
   And the error is a valid browser payload for the error reporting API