ruby-method-params-indent: New user option

* lisp/progmodes/ruby-mode.el (ruby-method-params-indent):
New option (bug#60110).

(ruby-smie-rules): Use it.

* etc/NEWS: Mention it.

* test/lisp/progmodes/ruby-mode-resources/ruby.rb:
Ensure the var's value is default.

* test/lisp/progmodes/ruby-mode-resources/ruby-method-params-indent.rb:
New file.

* test/lisp/progmodes/ruby-mode-tests.el (ruby-deftest-indent):
New macro, use it to run the indentation test using the new file.
Disable the :expensive-test tag, because neither runs for "longer
than some few seconds", both take significantly below 1s.

1 files changed, 18 insertions, 0 deletions

diff --git a/test/lisp/progmodes/ruby-mode-resources/ruby-method-params-indent.rb b/test/lisp/progmodes/ruby-mode-resources/ruby-method-params-indent.rb
new file mode 100644
index 00000000000..2b665797397
--- /dev/null
+++ b/test/lisp/progmodes/ruby-mode-resources/ruby-method-params-indent.rb
@@ -0,0 +1,18 @@
+class C
+  def self.foo(
+    baz,
+    bar
+  ) =
+    what
+
+  def foo=(
+    baz,
+    bar
+  )
+    hello
+  end
+end
+
+# Local Variables:
+# ruby-method-params-indent: 0
+# End: