bring back guide on how to update go.js

npm-packages/cadence-language-server/README.md

@@ -6,5 +6,16 @@ so it can be used in tools written in JavaScript.
 
 ## Releasing
 
-To release a new version of the Language server NPM package all you need to do is create a release of Langauge server and GitHub action will also publish a new version of WebAssembly built binary to NPM. 
+To release a new version of the Language server NPM package all you need to do is create a release of Langauge server and GitHub action will also publish a new version of WebAssembly built binary to NPM.
 That newly build NPM package using the WebAssembly will be published and can be found on NPM https://www.npmjs.com/package/@onflow/cadence-language-server
+
+## Development
+
+### Updating `src/go.js`
+
+- Copy `misc/wasm/wasm_exec.js` of appropriate Go version into `src/go.js`.
+  Keep the last line (`export const go = new Go();`)
+- Update the version in the header
+- Remove the anonymous function wrapper
+- Change `globalThis.Go = class {` to `class Go {`
+- Run `npx prettier -w src/go.js`

npm-packages/cadence-language-server/package.json

@@ -20,7 +20,8 @@
     "node-fetch": "^2.6.1",
     "ts-jest": "^29.1.1",
     "typescript": "^5.2.2",
-    "vscode-languageserver-protocol": "^3.17.5"
+    "vscode-languageserver-protocol": "^3.17.5",
+    "prettier": "^3.2.5"
   },
   "files": [
     "dist/**/*"