feat(ops): reland fast zero copy string arguments (#17996)

Reland https://github.com/denoland/deno/pull/16777

The codegen is disabled in async ops and when fallback to slow call is
possible (return type is a Result) to avoid hitting this V8 bug:
https://github.com/denoland/deno/issues/17159

1 files changed, 3 insertions, 0 deletions

diff --git a/ops/optimizer_tests/cow_str.rs b/ops/optimizer_tests/cow_str.rs
new file mode 100644
index 000000000..b7214bdc7
--- /dev/null
+++ b/ops/optimizer_tests/cow_str.rs
@@ -0,0 +1,3 @@
+fn op_cow_str(c: Cow<'_, str>) {
+  // ...
+}