Add integer select pattern

grammar.js

@@ -163,6 +163,7 @@ module.exports = grammar({
     _select_pattern: ($) => choice(
       $._string_literal,
       $.boolean_literal,
+      $.integer_literal,
       alias("any", $.any),
       $.pattern_binding,
       alias("default", $.default),

src/grammar.json

@@ -757,6 +757,10 @@
           "type": "SYMBOL",
           "name": "boolean_literal"
         },
+        {
+          "type": "SYMBOL",
+          "name": "integer_literal"
+        },
         {
           "type": "ALIAS",
           "content": {

src/node-types.json

@@ -531,6 +531,10 @@
           "type": "default",
           "named": true
         },
+        {
+          "type": "integer_literal",
+          "named": true
+        },
         {
           "type": "interpreted_string_literal",
           "named": true

test/corpus/select.txt

@@ -409,6 +409,46 @@ foo = select(some_boolean("IS_TRUE"), {
             (boolean_literal))
           (interpreted_string_literal))))))
 
+================================================================================
+Select (integer typed)
+================================================================================
+
+foo = select(some_integer("VALUE"), {
+    0: "0",
+    -1: "-1",
+    1: "1",
+    default: "default",
+})
+
+--------------------------------------------------------------------------------
+
+(source_file
+  (assignment
+    (identifier)
+    (operator)
+    (select_expression
+      (select_value
+        (condition
+          (identifier)
+          (interpreted_string_literal)))
+      (select_cases
+        (select_case
+          (select_pattern
+            (integer_literal))
+          (interpreted_string_literal))
+        (select_case
+          (select_pattern
+            (integer_literal))
+          (interpreted_string_literal))
+        (select_case
+          (select_pattern
+            (integer_literal))
+          (interpreted_string_literal))
+        (select_case
+          (select_pattern
+            (default))
+          (interpreted_string_literal))))))
+
 ================================================================================
 Select as an identifier
 ================================================================================