Add test for class MyClass extends Potato() with Tomato
@@ -335,6 +335,8 @@ object C {
class D(c: String) extends E(c) with F
+class MyClass extends Potato() with Tomato
+
---
(compilation_unit
@@ -368,6 +370,11 @@ class D(c: String) extends E(c) with F
(class_parameter (identifier) (type_identifier)))
(extends_clause
(type_identifier) (arguments (identifier))
+ (type_identifier)))
+ (class_definition
+ (identifier)
+ (extends_clause
+ (type_identifier) (arguments)
(type_identifier))))
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