chore: move cli/tests/ -> tests/ (#22369)

This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/testdata/echo_server.ts b/tests/testdata/echo_server.ts
new file mode 100644
index 000000000..e7622c7aa
--- /dev/null
+++ b/tests/testdata/echo_server.ts
@@ -0,0 +1,12 @@
+import { copy } from "../../test_util/std/streams/copy.ts";
+const addr = Deno.args[0] || "0.0.0.0:4544";
+const [hostname, port] = addr.split(":");
+const listener = Deno.listen({ hostname, port: Number(port) });
+console.log("listening on", addr);
+listener.accept().then(
+  async (conn) => {
+    console.log("received bytes:", await copy(conn, conn));
+    conn.close();
+    listener.close();
+  },
+);