Fix #5770: Add JavaDefined to tasty reflect

Author: liufengyun

compiler/src/dotty/tools/dotc/tastyreflect/FlagsOpsImpl.scala

@@ -27,6 +27,7 @@ trait FlagsOpsImpl extends scala.tasty.reflect.FlagsOps with CoreImpl {
     def Inline: Flags = core.Flags.Inline
     def Macro: Flags = core.Flags.Macro
     def Static: Flags = core.Flags.JavaStatic
+    def JavaDefined: Flags = core.Flags.JavaDefined
     def Object: Flags = core.Flags.Module
     def Trait: Flags = core.Flags.Trait
     def Local: Flags = core.Flags.Local

library/src/scala/tasty/reflect/FlagsOps.scala

@@ -54,6 +54,9 @@ trait FlagsOps extends Core {
     /** Is this symbol marked as static. Mapped to static Java member */
     def Static: Flags
 
+    /** Is this symbol defined in a Java class */
+    def JavaDefined: Flags
+
     /** Is this symbol an object or its class (used for a ValDef or a ClassDef extends Modifier respectively) */
     def Object: Flags