Rename Future references to Task throughout codebase

src/libraries/System.Private.CoreLib/src/System.Private.CoreLib.Shared.projitems

@@ -1287,8 +1287,8 @@
     <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\CachedCompletedInt32Task.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\ConcurrentExclusiveSchedulerPair.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\ConfigureAwaitOptions.cs" />
-    <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\Future.cs" />
-    <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\FutureFactory.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\Task_T.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\TaskFactory_T.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\LoggingExtensions.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\Sources\IValueTaskSource.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\Threading\Tasks\Sources\ManualResetValueTaskSourceCore.cs" />

src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Future.cs → src/libraries/System.Private.CoreLib/src/System/Threading/Tasks/Task_T.cs

@@ -54,7 +54,7 @@ namespace System.Threading.Tasks
     /// and may be used from multiple threads concurrently.
     /// </para>
     /// </remarks>
-    [DebuggerTypeProxy(typeof(SystemThreadingTasks_FutureDebugView<>))]
+    [DebuggerTypeProxy(typeof(SystemThreadingTasks_TaskDebugView<>))]
     [DebuggerDisplay("Id = {Id}, Status = {Status}, Method = {DebuggerDisplayMethodDescription}, Result = {DebuggerDisplayResultDescription}")]
     public class Task<TResult> : Task
     {
@@ -1172,16 +1172,16 @@ internal Task<TNewResult> ContinueWith<TNewResult>(Func<Task<TResult>, TNewResul
                 out TaskCreationOptions creationOptions,
                 out InternalTaskOptions internalOptions);
 
-            Task<TNewResult> continuationFuture = new ContinuationResultTaskFromResultTask<TResult, TNewResult>(
+            Task<TNewResult> continuationTask = new ContinuationResultTaskFromResultTask<TResult, TNewResult>(
                 this, continuationFunction, null,
                 creationOptions, internalOptions
             );
 
             // Register the continuation.  If synchronous execution is requested, this may
             // actually invoke the continuation before returning.
-            ContinueWithCore(continuationFuture, scheduler, cancellationToken, continuationOptions);
+            ContinueWithCore(continuationTask, scheduler, cancellationToken, continuationOptions);
 
-            return continuationFuture;
+            return continuationTask;
         }
         #endregion
 
@@ -1393,16 +1393,16 @@ internal Task<TNewResult> ContinueWith<TNewResult>(Func<Task<TResult>, object?,
                 out TaskCreationOptions creationOptions,
                 out InternalTaskOptions internalOptions);
 
-            Task<TNewResult> continuationFuture = new ContinuationResultTaskFromResultTask<TResult, TNewResult>(
+            Task<TNewResult> continuationTask = new ContinuationResultTaskFromResultTask<TResult, TNewResult>(
                 this, continuationFunction, state,
                 creationOptions, internalOptions
             );
 
             // Register the continuation.  If synchronous execution is requested, this may
             // actually invoke the continuation before returning.
-            ContinueWithCore(continuationFuture, scheduler, cancellationToken, continuationOptions);
+            ContinueWithCore(continuationTask, scheduler, cancellationToken, continuationOptions);
 
-            return continuationFuture;
+            return continuationTask;
         }
 
         #endregion
@@ -1411,11 +1411,11 @@ internal Task<TNewResult> ContinueWith<TNewResult>(Func<Task<TResult>, object?,
     }
 
     // Proxy class for better debugging experience
-    internal sealed class SystemThreadingTasks_FutureDebugView<TResult>
+    internal sealed class SystemThreadingTasks_TaskDebugView<TResult>
     {
         private readonly Task<TResult> m_task;
 
-        public SystemThreadingTasks_FutureDebugView(Task<TResult> task)
+        public SystemThreadingTasks_TaskDebugView(Task<TResult> task)
         {
             Debug.Assert(task != null);
             m_task = task;

src/libraries/System.Runtime/tests/System.Threading.Tasks.Tests/Task/TaskAPMTest.cs

@@ -22,7 +22,7 @@ namespace System.Threading.Tasks.Tests
     public sealed class TaskAPMTests : IDisposable
     {
         /// <summary>
-        /// Used to indicate whether to test TPL's Task or Future functionality for the APM pattern
+        /// Used to indicate whether to test TPL's Task or Task<TResult> functionality for the APM pattern
         /// </summary>
         private bool _hasReturnType;
 
@@ -234,7 +234,7 @@ public void EndDoTask(IAsyncResult asyncResult)
     }
 
     /// <summary>
-    /// A dummy class that simulates a long running Future that implements IAsyncResult methods
+    /// A dummy class that simulates a long running Task<TResult> that implements IAsyncResult methods
     /// </summary>
     public sealed class LongTask<T> : LongTask
     {