Add negative literal test case to irrefutable pattern tests
@@ -403,6 +403,7 @@ Function Declarations With Irrefutable Pattern
=================================================
f ~a = 1
+f ~(-(1)) = 1
---
@@ -412,5 +413,14 @@ f ~a = 1
(variable_identifier)
(irrefutable_pattern
(variable_identifier)))
+ (function_body
+ (integer)))
+ (function_declaration
+ (function_head
+ (variable_identifier)
+ (irrefutable_pattern
+ (parenthesized_pattern
+ (negative_literal
+ (integer)))))
(function_body
(integer))))
