build(rust): vendor googletest crate

third_party/crates/regex-automata-0.4.18/tests/dfa/mod.rs

@@ -0,0 +1,8 @@
+#[cfg(all(feature = "dfa-build", feature = "dfa-search"))]
+mod api;
+#[cfg(feature = "dfa-onepass")]
+mod onepass;
+#[cfg(all(feature = "dfa-build", feature = "dfa-search"))]
+mod regression;
+#[cfg(all(not(miri), feature = "dfa-build", feature = "dfa-search"))]
+mod suite;