Vendor things

third-party/vendor/deno_ast/scripts/README.md

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+# Scripts
+
+These scripts provide a way to help upgrade, test, and open PRs in downstream
+crates on an swc version bump.
+
+## Setup
+
+1. Ensure all repos are cloned into sibling directories:
+
+- `./deno`
+- `./deno_ast`
+- `./deno_doc`
+- `./deno_emit`
+- `./deno_graph`
+- `./deno_lint`
+- `./dprint-plugin-typescript`
+
+2. Ensure all repos have an `upstream` remote defined as the original repo.
+
+## Overview
+
+- `01_setup.ts` - Ensures all downstream crates are on the latest main, then
+  points them at local copies of each other.
+- `02_build.ts` - Builds each crate. If you encounter any build errors, fix them
+  and keep running this until everything builds.
+- `03_test.ts` - Tests each crate. If you encounter test failures, fix them and
+  keep running this until all the tests pass.
+- `04_confirm.ts` - Updates the dependency versions, creates a branch, commits,
+  and pushes a branch for every selected repo.