rubocop: Fix audit for dependency order with multiple tags

Dependencies that have multiple tags (`[:build, :test]`) get sorted into
multiple locations resulting in the cop always reporting an offense
regardless of order.

Library/Homebrew/rubocops/dependency_order_cop.rb

@@ -44,14 +44,19 @@ module RuboCop
         end
 
         # Separate dependencies according to precedence order:
-        # build-time > run-time > normal > recommended > optional
+        # build-time > test > normal > recommended > optional
         def sort_dependencies_by_type(dependency_nodes)
+          unsorted_deps = dependency_nodes.to_a
           ordered = []
-          ordered.concat(dependency_nodes.select { |dep| buildtime_dependency? dep }.to_a)
-          ordered.concat(dependency_nodes.select { |dep| test_dependency? dep }.to_a)
-          ordered.concat(dependency_nodes.reject { |dep| negate_normal_dependency? dep }.to_a)
-          ordered.concat(dependency_nodes.select { |dep| recommended_dependency? dep }.to_a)
-          ordered.concat(dependency_nodes.select { |dep| optional_dependency? dep }.to_a)
+          ordered.concat(unsorted_deps.select { |dep| buildtime_dependency? dep })
+          unsorted_deps -= ordered
+          ordered.concat(unsorted_deps.select { |dep| test_dependency? dep })
+          unsorted_deps -= ordered
+          ordered.concat(unsorted_deps.reject { |dep| negate_normal_dependency? dep })
+          unsorted_deps -= ordered
+          ordered.concat(unsorted_deps.select { |dep| recommended_dependency? dep })
+          unsorted_deps -= ordered
+          ordered.concat(unsorted_deps.select { |dep| optional_dependency? dep })
         end
 
         # `depends_on :apple if build.with? "foo"` should always be defined

Library/Homebrew/test/rubocops/dependency_order_cop_spec.rb

@@ -46,6 +46,18 @@ describe RuboCop::Cop::NewFormulaAudit::DependencyOrder do
         end
       RUBY
     end
+
+    it "correct depends_on order for multiple tags" do
+      expect_no_offenses(<<~RUBY)
+        class Foo < Formula
+          homepage "http://example.com"
+          url "http://example.com/foo-1.0.tgz"
+          depends_on "bar" => [:build, :test]
+          depends_on "foo" => :build
+          depends_on "apple"
+        end
+      RUBY
+    end
   end
 
   context "autocorrect" do