Add kotlin function type overloads for map / mapBy

Test: ./gradlew paging:paging-common:check
Change-Id: I4b0534d73725ff12cf05437fe62f4797419324f1

diff --git a/paging/common/api/current.txt b/paging/common/api/current.txt
index 1b5b1fa..9fd763e 100644
--- a/paging/common/api/current.txt
+++ b/paging/common/api/current.txt

@@ -9,7 +9,9 @@
     method @WorkerThread public boolean isInvalid();
     method public boolean isRetryableError(Throwable error);
     method public <ToValue> androidx.paging.DataSource<Key,ToValue> map(androidx.arch.core.util.Function<Value,ToValue> function);
+    method public <ToValue> androidx.paging.DataSource<Key,ToValue> map(kotlin.jvm.functions.Function1<? super Value,? extends ToValue> function);
     method public <ToValue> androidx.paging.DataSource<Key,ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>,java.util.List<ToValue>> function);
+    method public <ToValue> androidx.paging.DataSource<Key,ToValue> mapByPage(kotlin.jvm.functions.Function1<? super java.util.List<? extends Value>,? extends java.util.List<? extends ToValue>> function);
     method @AnyThread public void removeInvalidatedCallback(androidx.paging.DataSource.InvalidatedCallback onInvalidatedCallback);
     method @AnyThread public final void removeInvalidatedCallback(kotlin.jvm.functions.Function0<kotlin.Unit> onInvalidatedCallback);
     property protected final java.util.concurrent.Executor executor;
@@ -31,7 +33,9 @@
     ctor public DataSource.Factory();
     method public abstract androidx.paging.DataSource<Key,Value> create();
     method public <ToValue> androidx.paging.DataSource.Factory<Key,ToValue> map(androidx.arch.core.util.Function<Value,ToValue> function);
+    method public <ToValue> androidx.paging.DataSource.Factory<Key,ToValue> map(kotlin.jvm.functions.Function1<? super Value,? extends ToValue> function);
     method public <ToValue> androidx.paging.DataSource.Factory<Key,ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>,java.util.List<ToValue>> function);
+    method public <ToValue> androidx.paging.DataSource.Factory<Key,ToValue> mapByPage(kotlin.jvm.functions.Function1<? super java.util.List<? extends Value>,? extends java.util.List<? extends ToValue>> function);
   }
 
   public static interface DataSource.InvalidatedCallback {
@@ -49,7 +53,9 @@
     method public abstract void loadBefore(androidx.paging.ItemKeyedDataSource.LoadParams<Key> params, androidx.paging.ItemKeyedDataSource.LoadCallback<Value> callback);
     method public abstract void loadInitial(androidx.paging.ItemKeyedDataSource.LoadInitialParams<Key> params, androidx.paging.ItemKeyedDataSource.LoadInitialCallback<Value> callback);
     method public final <ToValue> androidx.paging.ItemKeyedDataSource<Key,ToValue> map(androidx.arch.core.util.Function<Value,ToValue> function);
+    method public final <ToValue> androidx.paging.ItemKeyedDataSource<Key,ToValue> map(kotlin.jvm.functions.Function1<? super Value,? extends ToValue> function);
     method public final <ToValue> androidx.paging.ItemKeyedDataSource<Key,ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>,java.util.List<ToValue>> function);
+    method public final <ToValue> androidx.paging.ItemKeyedDataSource<Key,ToValue> mapByPage(kotlin.jvm.functions.Function1<? super java.util.List<? extends Value>,? extends java.util.List<? extends ToValue>> function);
   }
 
   public abstract static class ItemKeyedDataSource.LoadCallback<Value> {
@@ -144,7 +150,9 @@
     method public final com.google.common.util.concurrent.ListenableFuture<androidx.paging.ListenablePageKeyedDataSource.InitialResult<Key,Value>> loadInitial(androidx.paging.ListenablePageKeyedDataSource.LoadInitialParams<Key> params);
     method public abstract void loadInitial(androidx.paging.PageKeyedDataSource.LoadInitialParams<Key> params, androidx.paging.PageKeyedDataSource.LoadInitialCallback<Key,Value> callback);
     method public final <ToValue> androidx.paging.PageKeyedDataSource<Key,ToValue> map(androidx.arch.core.util.Function<Value,ToValue> function);
+    method public final <ToValue> androidx.paging.PageKeyedDataSource<Key,ToValue> map(kotlin.jvm.functions.Function1<? super Value,? extends ToValue> function);
     method public final <ToValue> androidx.paging.PageKeyedDataSource<Key,ToValue> mapByPage(androidx.arch.core.util.Function<java.util.List<Value>,java.util.List<ToValue>> function);
+    method public final <ToValue> androidx.paging.PageKeyedDataSource<Key,ToValue> mapByPage(kotlin.jvm.functions.Function1<? super java.util.List<? extends Value>,? extends java.util.List<? extends ToValue>> function);
   }
 
   public abstract static class PageKeyedDataSource.LoadCallback<Key, Value> {
@@ -347,7 +355,9 @@
     method public final com.google.common.util.concurrent.ListenableFuture<androidx.paging.ListenablePositionalDataSource.RangeResult<T>> loadRange(androidx.paging.ListenablePositionalDataSource.LoadRangeParams params);
     method @WorkerThread public abstract void loadRange(androidx.paging.PositionalDataSource.LoadRangeParams params, androidx.paging.PositionalDataSource.LoadRangeCallback<T> callback);
     method public final <V> androidx.paging.PositionalDataSource<V> map(androidx.arch.core.util.Function<T,V> function);
+    method public final <V> androidx.paging.PositionalDataSource<V> map(kotlin.jvm.functions.Function1<? super T,? extends V> function);
     method public final <V> androidx.paging.PositionalDataSource<V> mapByPage(androidx.arch.core.util.Function<java.util.List<T>,java.util.List<V>> function);
+    method public final <V> androidx.paging.PositionalDataSource<V> mapByPage(kotlin.jvm.functions.Function1<? super java.util.List<? extends T>,? extends java.util.List<? extends V>> function);
   }
 
   public abstract static class PositionalDataSource.LoadInitialCallback<T> {