fix(ruby): fix runnable detection (#234)

In #229 , we changed the runnable detection logic for it, describe, its,
etc. to look inside of strings for their content so that we don't pass
along their quotations to the command line. However, in doing so, tests
that use modules, classes, or symbols were no longer being detected. Add
back detection for those, and a catch-all to make sure we don't miss any
other cases (which is what we had before).

Author: Hawkbawk

languages/ruby/runnables.scm

@@ -44,8 +44,15 @@
     "include_examples")
   arguments: (argument_list
     .
-    (_
-      (string_content) @name @RUBY_TEST_NAME))) @_ruby-test
+    [
+      (_
+        (string_content) @name @RUBY_TEST_NAME)
+      (constant) @name @RUBY_TEST_NAME
+      (scope_resolution) @name @RUBY_TEST_NAME
+      (simple_symbol) @name @RUBY_TEST_NAME
+      ; Catch-all to make sure we don't miss any cases (numbers, arrays, dynamically generated names, etc)
+      (_) @name @RUBY_TEST_NAME
+    ])) @_ruby-test
   (#set! tag ruby-test))
 
 ; Examples (one-liner syntax)