feat: add JSXSpreadChild and tool to build keys out of AST definitions

tests/lib/get-keys-from-ts.js

@@ -7,6 +7,7 @@ import { diffString } from "json-diff";
 import { expect } from "chai";
 import { alphabetizeKeyInterfaces, getKeysFromTsFile } from "../../tools/get-keys-from-ts.js";
 import { KEYS } from "../../lib/index.js";
+import backwardCompatibleKeys from "../../tools/backwardCompatibleKeys.js";
 
 describe("getKeysFromTsFile", () => {
     it("gets keys", async () => {
@@ -20,15 +21,6 @@ describe("getKeysFromTsFile", () => {
             }
         );
 
-        const backwardCompatibleKeys = {
-            ExperimentalRestProperty: [
-                "argument"
-            ],
-            ExperimentalSpreadProperty: [
-                "argument"
-            ]
-        };
-
         const actual = alphabetizeKeyInterfaces({ ...keys, ...jsxKeys, ...backwardCompatibleKeys });
 
         const expected = KEYS;

tools/backwardCompatibleKeys.js

@@ -0,0 +1,10 @@
+const backwardCompatibleKeys = {
+    ExperimentalRestProperty: [
+        "argument"
+    ],
+    ExperimentalSpreadProperty: [
+        "argument"
+    ]
+};
+
+export default backwardCompatibleKeys;

tools/build-keys-from-ts.js

@@ -9,6 +9,7 @@
 
 import fs from "fs";
 import { alphabetizeKeyInterfaces, getKeysFromTsFile } from "./get-keys-from-ts.js";
+import backwardCompatibleKeys from "./backwardCompatibleKeys.js";
 
 const { promises: { writeFile } } = fs;
 
@@ -21,15 +22,6 @@ const { promises: { writeFile } } = fs;
         }
     );
 
-    const backwardCompatibleKeys = {
-        ExperimentalRestProperty: [
-            "argument"
-        ],
-        ExperimentalSpreadProperty: [
-            "argument"
-        ]
-    };
-
     const mergedKeys = alphabetizeKeyInterfaces({ ...keys, ...jsxKeys, ...backwardCompatibleKeys });
 
     // eslint-disable-next-line no-console -- CLI