Hide the documentation for four submodules of matchers with no visible documentation elements.

Otherwise the modules appear in the generated Rustdoc but are empty.

PiperOrigin-RevId: 558086414

Author: hovinenb

googletest/src/assertions.rs

@@ -12,6 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// There are no visible documentation elements in this module; the declarative
+// macros are documented at the top level.
+#![doc(hidden)]
+
 /// Checks whether the `Matcher` given by the second argument matches the first
 /// argument.
 ///

googletest/src/matchers/conjunction_matcher.rs

@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// There are no visible documentation elements in this module.
+#![doc(hidden)]
+
 use crate::matcher::{Matcher, MatcherResult};
 use std::fmt::Debug;
 

googletest/src/matchers/disjunction_matcher.rs

@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// There are no visible documentation elements in this module.
+#![doc(hidden)]
+
 use crate::matcher::{Matcher, MatcherResult};
 use std::fmt::Debug;
 

googletest/src/matchers/unordered_elements_are_matcher.rs

@@ -14,6 +14,7 @@
 
 // There are no visible documentation elements in this module; the declarative
 // macro is documented at the top level.
+#![doc(hidden)]
 
 /// Matches a container whose elements in any order have a 1:1 correspondence
 /// with the provided element matchers.