pw_status: Update Status::CODE to Status::Code()

- Update Status::CODE style to Status::Code() using
  pw_status/update_style.py.
- Make minor adjustments to the pw_assert tests to get them passing.

Change-Id: Ie54c3c605178fd1e42c7cedbcff324115f3ed279
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/19165
Commit-Queue: Wyatt Hepler <hepler@google.com>
Reviewed-by: Ewout van Bekkum <ewout@google.com>
diff --git a/pw_assert/assert_backend_compile_test.cc b/pw_assert/assert_backend_compile_test.cc
index da19e34..6e1ac2e 100644
--- a/pw_assert/assert_backend_compile_test.cc
+++ b/pw_assert/assert_backend_compile_test.cc
@@ -203,7 +203,7 @@
 
 TEST(Check, CheckOkMacrosCompile) {
   MAYBE_SKIP_TEST;
-  pw::Status status = pw::Status::UNKNOWN;
+  pw::Status status = pw::Status::Unknown();
 
   // Typical case with long names.
   PW_CHECK_OK(status);
@@ -216,10 +216,10 @@
   CHECK_OK(status, "msg: %d", 5);
 
   // Status from a literal.
-  PW_CHECK_OK(pw::Status::OK);
+  PW_CHECK_OK(pw::Status::Ok());
 
   // Status from a function.
-  PW_CHECK_OK(MakeStatus(pw::Status::OK));
+  PW_CHECK_OK(MakeStatus(pw::Status::Ok()));
 
   // Status from C enums.
   PW_CHECK_OK(PW_STATUS_OK);