In the following example, javac crashes when compiling a file that references an annotation with a @Target containing an invalid ElementType.

The class file is not well formed, but the compiler should handle it without crashing.

I think this should be a warning, but not a fatal error. The values in ElementType are updated for new language features, so this is similar this crash involve a Java 8 compilation that saw a reference to ElementType.MODULE: https://bugs.openjdk.org/browse/JDK-8295314

```
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Opcodes;

import java.nio.file.Files;
import java.nio.file.Paths;

public class Gen {

  public static void main(String[] args) throws Exception {
    Files.write(Paths.get("A.class"), dump());
  }

  private static byte[] dump() {
    ClassWriter classWriter = new ClassWriter(0);
    classWriter.visit(
        Opcodes.V11,
        Opcodes.ACC_ANNOTATION | Opcodes.ACC_ABSTRACT | Opcodes.ACC_INTERFACE,
        "A",
        null,
        "java/lang/Object",
        new String[] {"java/lang/annotation/Annotation"});
    classWriter.visitSource("A.java", null);
    AnnotationVisitor target = classWriter.visitAnnotation("Ljava/lang/annotation/Target;", true);
    AnnotationVisitor value = target.visitArray("value");
    value.visitEnum(null, "Ljava/lang/annotation/ElementType;", "FIELD");
    value.visitEnum(null, "Ljava/lang/annotation/ElementType;", "NO_SUCH");
    value.visitEnd();
    target.visitEnd();
    classWriter.visitEnd();
    return classWriter.toByteArray();
  }
}
```

```
class B {
  @A Object o;
}
```

```
$ javac -cp asm-9.4.jar:asm-util-9.4.jar Gen.java
$ java -cp asm-9.4.jar:asm-util-9.4.jar:. Gen
$ javac -fullversion B.java
javac full version "19-ea+34-2229"
warning: unknown enum constant ElementType.NO_SUCH
warning: unknown enum constant ElementType.NO_SUCH
2 warnings
An exception has occurred in the compiler (19-ea). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program, the following diagnostic, and the parameters passed to the Java compiler in your report. Thank you.
java.lang.AssertionError: annotationTargetType(): unrecognized Attribute name NO_SUCH (class com.sun.tools.javac.util.SharedNameTable$NameImpl)
        at jdk.compiler/com.sun.tools.javac.util.Assert.error(Assert.java:162)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations.targetToAnnotationType(TypeAnnotations.java:256)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations.lambda$annotationTargetType$3(TypeAnnotations.java:190)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
        at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
        at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1921)
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
        at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
        at java.base/java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:657)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations.annotationTargetType(TypeAnnotations.java:191)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.separateAnnotationsKinds(TypeAnnotations.java:316)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.visitVarDef(TypeAnnotations.java:1269)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:1018)
        at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.scan(TypeAnnotations.java:294)
        at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.visitClassDef(TypeAnnotations.java:1142)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:810)
        at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.scan(TypeAnnotations.java:294)
        at jdk.compiler/com.sun.tools.javac.code.TypeAnnotations.lambda$organizeTypeAnnotationsSignatures$0(TypeAnnotations.java:131)
        at jdk.compiler/com.sun.tools.javac.comp.Annotate.flush(Annotate.java:198)
        at jdk.compiler/com.sun.tools.javac.comp.Annotate.unblockAnnotations(Annotate.java:145)
        at jdk.compiler/com.sun.tools.javac.comp.Annotate.enterDone(Annotate.java:158)
        at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.enterDone(JavaCompiler.java:1741)
        at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.enterTrees(JavaCompiler.java:1044)
        at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:917)
        at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
        at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
        at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
        at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
```