Implement symbol renaming

[tmcw]

This is supported by monaco and should be available to CodeMirror users. It doesn't seem like TypeScript itself has a method to just "give you a document with a symbol renamed" - it's a matter of finding all instances of the symbol and renaming them there. Closest I can find to a source reference:

https://github.com/microsoft/monaco-editor/blob/091550e89857bd926d2b66e100dc3c2094475783/src/language/typescript/languageFeatures.ts#L1191C48-L1191C48

[peterje]

What's the expected API here? I guess this is an overarching question for the library as a whole. Should codemirror-ts ship with a default context menu, similar to what Monaco provides? The alternative is to ship some minimal

renameSymbol({offset: number, newSymbolName: string, ...opts})

From my experience, the codemirror ecosystem seems to promote the latter.

[tmcw]

I think I'd want to ship a command, like you suggest, and an optional UI or keybinding to make it easy to get started, but you can stop using the UI if you want to build your own.