Minor, extract isDeprecatedHidden for usage in codegen

Also remove a hundred year old TODO

compiler/backend/src/org/jetbrains/kotlin/codegen/AsmUtil.java

@@ -231,15 +231,14 @@ public class AsmUtil {
         int flags = getVisibilityAccessFlag(functionDescriptor);
         flags |= getVarargsFlag(functionDescriptor);
         flags |= getDeprecatedAccessFlag(functionDescriptor);
-        if (DeprecationUtilKt.isHiddenInResolution(functionDescriptor)
+        if (DeprecationUtilKt.isDeprecatedHidden(functionDescriptor)
             || functionDescriptor instanceof PropertyAccessorDescriptor
-               && DeprecationUtilKt.isHiddenInResolution(((PropertyAccessorDescriptor) functionDescriptor).getCorrespondingProperty())) {
+               && DeprecationUtilKt.isDeprecatedHidden(((PropertyAccessorDescriptor) functionDescriptor).getCorrespondingProperty())) {
             flags |= ACC_SYNTHETIC;
         }
         return flags;
     }
 
-    //TODO: move mapping logic to front-end java
     public static int getVisibilityAccessFlag(@NotNull MemberDescriptor descriptor) {
         Integer specialCase = specialCaseVisibility(descriptor);
         if (specialCase != null) {

compiler/frontend/src/org/jetbrains/kotlin/resolve/deprecationUtil.kt

@@ -183,11 +183,15 @@ enum class DeprecationLevelValue {
     WARNING, ERROR, HIDDEN
 }
 
+fun DeclarationDescriptor.isDeprecatedHidden(): Boolean {
+    return getDeprecation()?.deprecationLevel == DeprecationLevelValue.HIDDEN
+}
+
 @JvmOverloads
 fun DeclarationDescriptor.isHiddenInResolution(isSuperCall: Boolean = false): Boolean {
     if (this is FunctionDescriptor) {
         if (isHiddenToOvercomeSignatureClash) return true
         if (isHiddenForResolutionEverywhereBesideSupercalls && !isSuperCall) return true
     }
-    return getDeprecation()?.deprecationLevel == DeprecationLevelValue.HIDDEN
+    return isDeprecatedHidden()
 }