Workaround AP throwing exception if there is a compile error in the file

Author: embeddedt

annotation-processor/src/main/java/org/fury_phoenix/mixinAp/annotation/ClientMixinValidator.java

@@ -166,6 +166,7 @@ private Collection<Object> getTargets(TypeElement annotatedMixinClass) {
 
             clzsses = wrappedClzss.stream()
             .map(AnnotationValue::getValue)
+            .filter(o -> o instanceof TypeMirror)
             .map(TypeMirror.class::cast)
             .collect(Collectors.toSet());