Fix Desc target in FIELD At

Author: thecatcore

src/main/java/net/fabricmc/tinyremapper/extension/mixin/soft/annotation/injection/AtAnnotationVisitor.java

@@ -106,7 +106,7 @@ public AnnotationVisitor visitAnnotation(String name, String descriptor) {
 					throw new RuntimeException("Unexpected annotation " + descriptor);
 				}
 
-				av = new DescAnnotationVisitor(targets, data, av, TrMember.MemberType.METHOD);
+				av = new DescAnnotationVisitor(targets, data, av, this.value.equals("FIELD") ? TrMember.MemberType.FIELD : TrMember.MemberType.METHOD);
 			}
 
 			return av;