swift

95bbfd34 - build-script: allow `--test-wasm-stdlib` without `--build-wasm-stdlib`

build-script: allow `--test-wasm-stdlib` without `--build-wasm-stdlib` This allows testing Wasm stdlib without rebuilding WASI sysroot and stdlib, while some changes are still detected by ninja as dependencies and are rebuilt, which is great for local incremental builds.