feat: add Float16Array (#777)

Author: bakkot

lib/tokeniser.js

@@ -29,6 +29,7 @@ export const typeNameKeywords = [
   "Uint8ClampedArray",
   "BigInt64Array",
   "BigUint64Array",
+  "Float16Array",
   "Float32Array",
   "Float64Array",
   "any",

test/syntax/baseline/buffersource.json

@@ -324,6 +324,38 @@
                 "extAttrs": [],
                 "special": ""
             },
+            {
+                "type": "operation",
+                "name": "add",
+                "idlType": {
+                    "type": "return-type",
+                    "extAttrs": [],
+                    "generic": "",
+                    "nullable": false,
+                    "union": false,
+                    "idlType": "undefined"
+                },
+                "arguments": [
+                    {
+                        "type": "argument",
+                        "name": "array",
+                        "extAttrs": [],
+                        "idlType": {
+                            "type": "argument-type",
+                            "extAttrs": [],
+                            "generic": "",
+                            "nullable": false,
+                            "union": false,
+                            "idlType": "Float16Array"
+                        },
+                        "default": null,
+                        "optional": false,
+                        "variadic": false
+                    }
+                ],
+                "extAttrs": [],
+                "special": ""
+            },
             {
                 "type": "operation",
                 "name": "add",

test/syntax/idl/buffersource.webidl

@@ -10,6 +10,7 @@ interface Buffer {
   undefined add(Uint8ClampedArray array);
   undefined add(BigInt64Array array);
   undefined add(BigUint64Array array);
+  undefined add(Float16Array array);
   undefined add(Float32Array array);
   undefined add(Float64Array array);