Add google-java-format unit tests for existing @Annotation() behavior.

PiperOrigin-RevId: 700741432

Author: kluever

core/src/test/resources/com/google/googlejavaformat/java/testdata/B381242320.input

@@ -0,0 +1,11 @@
+class B381242320 {
+  @Deprecated()
+  public int deprecatedMethod() {
+    return 42;
+  }
+
+  @Override()
+  public int hashCode() {
+    return 42;
+  }
+}

core/src/test/resources/com/google/googlejavaformat/java/testdata/B381242320.output

@@ -0,0 +1,11 @@
+class B381242320 {
+  @Deprecated()
+  public int deprecatedMethod() {
+    return 42;
+  }
+
+  @Override()
+  public int hashCode() {
+    return 42;
+  }
+}