Remove deprecated rerun_argument example method

Author: pirj

Changelog.md

@@ -26,6 +26,7 @@ Breaking Changes:
 * Remove support for Mocha version < 1.0. (Phil Pirozhkov, #2864)
 * Remove deprecated `PendingExampleFixedNotification` and
   `PendingExampleFailedAsExpectedNotification` classes. (Phil Pirozhkov, #2864)
+* Remove deprecated `rerun_argument` example method. (Phil Pirozhkov, #2864)
 
 Enhancements:
 

lib/rspec/core/example.rb

@@ -105,15 +105,6 @@ def location_rerun_argument
         end
       end
 
-      # Returns the location-based argument that can be passed to the `rspec` command to rerun this example.
-      #
-      # @deprecated Use {#location_rerun_argument} instead.
-      # @note If there are multiple examples identified by this location, they will use {#id}
-      #   to rerun instead, but this method will still return the location (that's why it is deprecated!).
-      def rerun_argument
-        location_rerun_argument
-      end
-
       # @return [String] the unique id of this example. Pass
       #   this at the command line to re-run this exact example.
       def id

spec/rspec/core/example_spec.rb

@@ -32,11 +32,11 @@ def metadata_hash(*args)
     end
   end
 
-  describe "#rerun_argument" do
+  describe "#location_rerun_argument" do
     it "returns the location-based rerun argument" do
       allow(RSpec.configuration).to receive_messages(:loaded_spec_files => [__FILE__])
       example = RSpec.describe.example
-      expect(example.rerun_argument).to eq("#{RSpec::Core::Metadata.relative_path(__FILE__)}:#{__LINE__ - 1}")
+      expect(example.location_rerun_argument).to eq("#{RSpec::Core::Metadata.relative_path(__FILE__)}:#{__LINE__ - 1}")
     end
   end