8246257: Annotated record's vararg type component started to be uncompilable with JDK15b24

Reviewed-by: jjg, jlaskey

src/jdk.compiler/share/classes/com/sun/tools/javac/code/TypeAnnotations.java

@@ -548,6 +548,9 @@ public class TypeAnnotations {
          */
         private Type rewriteArrayType(ArrayType type, List<TypeCompound> annotations, TypeAnnotationPosition pos) {
             ArrayType tomodify = new ArrayType(type);
+            if (type.isVarargs()) {
+                tomodify = tomodify.makeVarargs();
+            }
             ArrayType res = tomodify;
 
             List<TypePathEntry> loc = List.nil();

test/langtools/tools/javac/records/RecordCompilationTests.java

@@ -1130,6 +1130,26 @@ public class RecordCompilationTests extends CompilationTestCase {
                         this.args = args;
                     }
                 }
+                """,
+                """
+                record R(@A int... ints) {}
+
+                @java.lang.annotation.Target({
+                        java.lang.annotation.ElementType.TYPE_USE,
+                        java.lang.annotation.ElementType.RECORD_COMPONENT})
+                @interface A {}
+                """,
+                """
+                record R(@A int... ints) {
+                    R(@A int... ints) {
+                        this.ints = ints;
+                    }
+                }
+
+                @java.lang.annotation.Target({
+                        java.lang.annotation.ElementType.TYPE_USE,
+                        java.lang.annotation.ElementType.RECORD_COMPONENT})
+                @interface A {}
                 """
         )) {
             assertOK(source);