[clang-tools-extra] [clangd] Store documentation when indexing standard library (PR #133681)

[Nathan Ridge via cfe-commits]

HighCommander4 wrote:

The described options seem a bit more involved than necessary to fix this bug, given that it's just the value of the `StoreAllDocumentation` flag that's a problem.

I revised the patch to add a new parameter to `createStaticIndexingAction()` (now called `createIndexingAction()`) and set the flag based on that -- does this address your concern about callers having to decide whether they want `StoreAllDocumentation`?

https://github.com/llvm/llvm-project/pull/133681