Merge pull request #71599 from hborla/update-build-task-executor-feature-guard

[Features] Rename the `BuiltinBuildTaskExecutor` feature guard.

Author: shahmishal

include/swift/Basic/Features.def

@@ -77,7 +77,7 @@ LANGUAGE_FEATURE(BuiltinHopToActor, 0, "Builtin.HopToActor")
 LANGUAGE_FEATURE(BuiltinTaskGroupWithArgument, 0, "TaskGroup builtins")
 LANGUAGE_FEATURE(InheritActorContext, 0, "@_inheritActorContext attribute")
 LANGUAGE_FEATURE(ImplicitSelfCapture, 0, "@_implicitSelfCapture attribute")
-LANGUAGE_FEATURE(BuiltinBuildTaskExecutor, 0, "TaskExecutor-building builtins")
+LANGUAGE_FEATURE(BuiltinBuildTaskExecutorRef, 0, "TaskExecutor-building builtins")
 LANGUAGE_FEATURE(BuiltinBuildExecutor, 0, "Executor-building builtins")
 LANGUAGE_FEATURE(BuiltinBuildComplexEqualityExecutor, 0, "Executor-building for 'complexEquality executor' builtins")
 LANGUAGE_FEATURE(BuiltinBuildMainExecutor, 0, "MainActor executor building builtin")

lib/AST/ASTPrinter.cpp

@@ -3230,7 +3230,7 @@ static bool usesFeatureBuiltinExecutor(Decl *decl) {
   return usesBuiltinType(decl, BuiltinTypeKind::BuiltinExecutor);
 }
 
-static bool usesFeatureBuiltinBuildTaskExecutor(Decl *decl) { return false; }
+static bool usesFeatureBuiltinBuildTaskExecutorRef(Decl *decl) { return false; }
 
 static bool usesFeatureBuiltinBuildExecutor(Decl *decl) {
   return false;

stdlib/public/Concurrency/Executor.swift

@@ -294,7 +294,7 @@ public struct UnownedTaskExecutor: Sendable {
 
   @inlinable
   public init<E: TaskExecutor>(ordinary executor: __shared E) {
-    #if $BuiltinBuildTaskExecutor
+    #if $BuiltinBuildTaskExecutorRef
     self.executor = Builtin.buildOrdinaryTaskExecutorRef(executor)
     #else
     fatalError("Swift compiler is incompatible with this SDK version")