feat(core): sync io ops in core (#18603)

This commit adds op_read_sync and op_write_sync to core. These ops are
similar to op_read and op_write, but they are synchronous. Just like the
async ops, they operate on generic `deno_core::Resource` objects. These
now have new `read_byob_sync` and `write_sync` methods, with default
implementations throwing "NotSupported" errors, just like the async
counterparts.

There are no `write_all` or `read` equivalents, because the
optimizations they unlock are not useful in synchronous contexts.

0 files changed, 0 insertions, 0 deletions