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.

4 files changed, 31 insertions, 0 deletions

diff --git a/tests/testdata/fmt/regular/formatted1.js b/tests/testdata/fmt/regular/formatted1.js
new file mode 100644
index 000000000..587aa5b96
--- /dev/null
+++ b/tests/testdata/fmt/regular/formatted1.js
@@ -0,0 +1,5 @@
+function foo() {
+  return 42;
+}
+
+foo();
diff --git a/tests/testdata/fmt/regular/formatted2.ts b/tests/testdata/fmt/regular/formatted2.ts
new file mode 100644
index 000000000..4a8036806
--- /dev/null
+++ b/tests/testdata/fmt/regular/formatted2.ts
@@ -0,0 +1,5 @@
+function bar(): number {
+  return 42;
+}
+
+bar();
diff --git a/tests/testdata/fmt/regular/formatted3.markdown b/tests/testdata/fmt/regular/formatted3.markdown
new file mode 100644
index 000000000..e6e616584
--- /dev/null
+++ b/tests/testdata/fmt/regular/formatted3.markdown
@@ -0,0 +1,17 @@
+# Hello
+
+```js
+function foo() {
+  return 42;
+}
+
+foo();
+```
+
+```ts
+function bar(): number {
+  return 42;
+}
+
+bar();
+```
diff --git a/tests/testdata/fmt/regular/formatted4.jsonc b/tests/testdata/fmt/regular/formatted4.jsonc
new file mode 100644
index 000000000..f0f72a6ed
--- /dev/null
+++ b/tests/testdata/fmt/regular/formatted4.jsonc
@@ -0,0 +1,4 @@
+{
+  // Comment
+  "key": "value"
+}