Support androidx under-migration-like nullability annotations

They are hardcoded to avoid having dependency from android.jar on
our annotations' jar with UnderMigration.

Even while it could be a compile-only dependency we need to make sure
that annotated types are read properly without RecentlyNonNull/RecentlyNullable
in the classpath

 #KT-24278 Fixed

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/JvmAnnotationNames.kt

@@ -53,6 +53,9 @@ val NULLABILITY_ANNOTATIONS = NULLABLE_ANNOTATIONS + JAVAX_NONNULL_ANNOTATION +
 val COMPATQUAL_NULLABLE_ANNOTATION = FqName("org.checkerframework.checker.nullness.compatqual.NullableDecl")
 val COMPATQUAL_NONNULL_ANNOTATION = FqName("org.checkerframework.checker.nullness.compatqual.NonNullDecl")
 
+val ANDROIDX_RECENTLY_NULLABLE_ANNOTATION = FqName("androidx.annotation.RecentlyNullable")
+val ANDROIDX_RECENTLY_NON_NULL_ANNOTATION = FqName("androidx.annotation.RecentlyNonNull")
+
 val READ_ONLY_ANNOTATIONS = listOf(
     JvmAnnotationNames.JETBRAINS_READONLY_ANNOTATION,
     JvmAnnotationNames.READONLY_ANNOTATION

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/typeEnhancement/signatureEnhancement.kt

@@ -90,6 +90,16 @@ class SignatureEnhancement(
 
             annotationFqName == COMPATQUAL_NONNULL_ANNOTATION && jsr305State.enableCompatqualCheckerFrameworkAnnotations ->
                 NullabilityQualifierWithMigrationStatus(NullabilityQualifier.NOT_NULL)
+
+            annotationFqName == ANDROIDX_RECENTLY_NON_NULL_ANNOTATION -> NullabilityQualifierWithMigrationStatus(
+                NullabilityQualifier.NOT_NULL,
+                isForWarningOnly = true
+            )
+
+            annotationFqName == ANDROIDX_RECENTLY_NULLABLE_ANNOTATION -> NullabilityQualifierWithMigrationStatus(
+                NullabilityQualifier.NULLABLE,
+                isForWarningOnly = true
+            )
             else -> null
         }
     }