Support input storage class

grammar.js

@@ -2,5 +2,7 @@ const CPP = require("tree-sitter-cpp/grammar")
 
 module.exports = grammar(CPP, {
   name: "mql5",
-  rules: {},
+  rules: {
+    storage_class_specifier: ($, original) => choice(original, "input"),
+  },
 })

src/grammar.json

@@ -3388,24 +3388,33 @@
       "type": "CHOICE",
       "members": [
         {
-          "type": "STRING",
-          "value": "extern"
+          "type": "CHOICE",
+          "members": [
+            {
+              "type": "STRING",
+              "value": "extern"
+            },
+            {
+              "type": "STRING",
+              "value": "static"
+            },
+            {
+              "type": "STRING",
+              "value": "register"
+            },
+            {
+              "type": "STRING",
+              "value": "inline"
+            },
+            {
+              "type": "STRING",
+              "value": "thread_local"
+            }
+          ]
         },
         {
           "type": "STRING",
-          "value": "static"
-        },
-        {
-          "type": "STRING",
-          "value": "register"
-        },
-        {
-          "type": "STRING",
-          "value": "inline"
-        },
-        {
-          "type": "STRING",
-          "value": "thread_local"
+          "value": "input"
         }
       ]
     },

src/node-types.json

@@ -6587,6 +6587,10 @@
     "type": "inline",
     "named": false
   },
+  {
+    "type": "input",
+    "named": false
+  },
   {
     "type": "literal_suffix",
     "named": true

test/corpus/mql5.txt

@@ -0,0 +1,14 @@
+==========================================
+input storage class
+==========================================
+
+int a;
+input int b;
+input double c;
+
+---
+
+(translation_unit
+  (declaration (primitive_type) (identifier))
+  (declaration (storage_class_specifier) (primitive_type) (identifier))
+  (declaration (storage_class_specifier) (primitive_type) (identifier)))