Harden deprecation level for synchronized helper functions.

Make migration helper classes deprecated-hidden, although it doesn't affect anything.

libraries/stdlib/src/kotlin/ArraysKt.java

@@ -1,7 +1,7 @@
 package kotlin;
 
 @java.lang.Deprecated
-@kotlin.Deprecated(message = "Use kotlin.collections.ArraysKt instead")
+@kotlin.Deprecated(message = "Use kotlin.collections.ArraysKt instead", level = DeprecationLevel.HIDDEN)
 public class ArraysKt extends kotlin.collections.ArraysKt {
 }
 

libraries/stdlib/src/kotlin/CharsKt.java

@@ -17,6 +17,6 @@
 package kotlin;
 
 @java.lang.Deprecated
-@Deprecated(message = "Use kotlin.text.CharsKt instead")
+@Deprecated(message = "Use kotlin.text.CharsKt instead", level = DeprecationLevel.HIDDEN)
 public class CharsKt extends kotlin.text.CharsKt {
 }

libraries/stdlib/src/kotlin/CollectionsKt.java

@@ -1,6 +1,6 @@
 package kotlin;
 
 @java.lang.Deprecated
-@kotlin.Deprecated(message = "Use kotlin.collections.CollectionsKt instead")
+@kotlin.Deprecated(message = "Use kotlin.collections.CollectionsKt instead", level = DeprecationLevel.HIDDEN)
 public class CollectionsKt extends kotlin.collections.CollectionsKt {
 }

libraries/stdlib/src/kotlin/MapsKt.java

@@ -17,6 +17,6 @@
 package kotlin;
 
 @java.lang.Deprecated
-@Deprecated(message = "Use kotlin.collections.MapsKt instead")
+@Deprecated(message = "Use kotlin.collections.MapsKt instead", level = DeprecationLevel.HIDDEN)
 public class MapsKt extends kotlin.collections.MapsKt {
 }

libraries/stdlib/src/kotlin/RangesKt.java

@@ -17,6 +17,6 @@
 package kotlin;
 
 @java.lang.Deprecated
-@Deprecated(message = "Use kotlin.ranges.RangesKt instead")
+@Deprecated(message = "Use kotlin.ranges.RangesKt instead", level = DeprecationLevel.HIDDEN)
 public class RangesKt extends kotlin.ranges.RangesKt {
 }

libraries/stdlib/src/kotlin/SequencesKt.java

@@ -17,6 +17,6 @@
 package kotlin;
 
 @java.lang.Deprecated
-@Deprecated(message = "Use kotlin.sequences.SequencesKt instead")
+@Deprecated(message = "Use kotlin.sequences.SequencesKt instead", level = DeprecationLevel.HIDDEN)
 public class SequencesKt extends kotlin.sequences.SequencesKt {
 }

libraries/stdlib/src/kotlin/SetsKt.java

@@ -17,6 +17,6 @@
 package kotlin;
 
 @java.lang.Deprecated
-@Deprecated(message = "Use kotlin.collections.SetsKt instead")
+@Deprecated(message = "Use kotlin.collections.SetsKt instead", level = DeprecationLevel.HIDDEN)
 public class SetsKt extends kotlin.collections.SetsKt {
 }

libraries/stdlib/src/kotlin/StringsKt.java

@@ -17,6 +17,6 @@
 package kotlin;
 
 @java.lang.Deprecated
-@Deprecated(message = "Use kotlin.text.StringsKt instead")
+@Deprecated(message = "Use kotlin.text.StringsKt instead", level = DeprecationLevel.HIDDEN)
 public class StringsKt extends kotlin.text.StringsKt {
 }

libraries/stdlib/src/kotlin/jvm/internal/unsafe/monitor.kt

@@ -20,10 +20,10 @@ import kotlin.jvm.internal.Intrinsic
 
 /** @suppress */
 @Intrinsic("kotlin.jvm.internal.unsafe.monitorEnter")
-@Deprecated("This function supports the standard library infrastructure and is not intended to be used directly from user code.")
+@Deprecated("This function supports the standard library infrastructure and is not intended to be used directly from user code.", level = DeprecationLevel.ERROR)
 public fun monitorEnter(monitor: Any): Unit = throw UnsupportedOperationException("This function can only be used privately")
 
 /** @suppress */
 @Intrinsic("kotlin.jvm.internal.unsafe.monitorExit")
-@Deprecated("This function supports the standard library infrastructure and is not intended to be used directly from user code.")
+@Deprecated("This function supports the standard library infrastructure and is not intended to be used directly from user code.", level = DeprecationLevel.ERROR)
 public fun monitorExit(monitor: Any): Unit = throw UnsupportedOperationException("This function can only be used privately")

libraries/stdlib/src/kotlin/util/Synchronized.kt

@@ -8,7 +8,7 @@ import kotlin.jvm.internal.unsafe.*
 /**
  * Executes the given function [block] while holding the monitor of the given object [lock].
  */
-@Suppress("DEPRECATION")
+@Suppress("DEPRECATION_ERROR")
 public inline fun <R> synchronized(lock: Any, block: () -> R): R {
     monitorEnter(lock)
     try {