False positive for parentheses removal in splatted calls

Ahem, this is yet-another-false-positive for the `omit_parentheses`
style of the `Style/MethodCallWithArgsParentheses` cop.

If you are splatting the result of a call, you may end up with the
following:

```ruby
app/controllers/foo/bar_controller.rb:4:68: C: Style/MethodCallWithArgsParentheses: Omit parentheses for method calls with arguments.
      render json: FieldSearch.with(search_params).map(&method(:serialize))
                                                              ^^^^^^^^^^^^
```

lib/rubocop/cop/style/method_call_with_args_parentheses.rb

@@ -237,6 +237,7 @@ def call_in_literals?(node)
           node.parent &&
             (node.parent.pair_type? ||
              node.parent.array_type? ||
+             splat?(node.parent) ||
              ternary_if?(node.parent))
         end
 

spec/rubocop/cop/style/method_call_with_args_parentheses_spec.rb

@@ -414,6 +414,19 @@ def foo
       RUBY
     end
 
+    it 'accepts parens in splat calls' do
+      expect_no_offenses(<<-RUBY)
+        foo(*bar(args))
+        foo(**quux(args))
+      RUBY
+    end
+
+    it 'accepts parens in block passing calls' do
+      expect_no_offenses(<<-RUBY)
+        foo(&method(:args))
+      RUBY
+    end
+
     it 'auto-corrects single-line calls' do
       original = <<-RUBY.strip_indent
         top.test(1, 2, foo: bar(3))