Add field for checker instantiation

Author: gmlarumbe

grammar.js

@@ -2361,7 +2361,7 @@ const rules = {
 
 // *** A.4.1.4 Checker instantiation
   checker_instantiation: $ => prec('checker_instantiation', seq(
-    $.ps_checker_identifier,
+    field('instance_type', $.ps_checker_identifier),
     $.name_of_instance,
     '(', optional($.list_of_checker_port_connections), ')',
     ';'
@@ -2578,6 +2578,7 @@ const rules = {
 
 // ** A.5.4 UDP instantiation
   udp_instantiation: $ => seq(
+    // field('instance_type', $.udp_identifier), // TODO: For some reason results in parse errors with tree-sitter 0.22.6, in core/instantiation/user_defined_primitives
     $.udp_identifier,
     optional($.drive_strength),
     optional($.delay2),

test/corpus/doulos/125.1_checker_instantiation.txt

@@ -79,7 +79,7 @@ endmodule : m
         (simple_identifier)))
     (checker_item
       (checker_instantiation
-        (simple_identifier)
+        instance_type: (simple_identifier)
         (name_of_instance
           instance_name: (simple_identifier))
         (list_of_checker_port_connections
@@ -117,7 +117,7 @@ endmodule : m
                         (statement
                           (statement_item
                             (checker_instantiation
-                              (simple_identifier)
+                              instance_type: (simple_identifier)
                               (name_of_instance
                                 instance_name: (simple_identifier))
                               (list_of_checker_port_connections
@@ -173,7 +173,7 @@ endmodule : m
                       (statement
                         (statement_item
                           (checker_instantiation
-                            (simple_identifier)
+                            instance_type: (simple_identifier)
                             (name_of_instance
                               instance_name: (simple_identifier))
                             (list_of_checker_port_connections

test/corpus/doulos/55.2_instantiation.txt

@@ -17,7 +17,7 @@ Counter U123 (.Clock(Clk), .Reset(Rst), .Count(Q));
   (statement
     (statement_item
       (checker_instantiation
-        (simple_identifier)
+        instance_type: (simple_identifier)
         (name_of_instance
           instance_name: (simple_identifier))
         (list_of_checker_port_connections