Issue duckdb#7809: Window Work Stealing

Rename Yield to avoid tripping over Windows macro madness...

src/execution/operator/aggregate/physical_window.cpp

@@ -558,7 +558,7 @@ WindowGlobalSourceState::Task WindowGlobalSourceState::NextTask(idx_t hash_bin)
 
 		//	If there is nothing to steal but there are unfinished partitions,
 		//	yield until any pending builds are done.
-		TaskScheduler::GetScheduler(context).Yield();
+		TaskScheduler::GetScheduler(context).YieldThread();
 	}
 
 	return Task();

src/include/duckdb/parallel/task_scheduler.hpp

@@ -68,7 +68,7 @@ class TaskScheduler {
 	void Signal(idx_t n);
 
 	//! Yield to other threads
-	void Yield();
+	void YieldThread();
 
 	//! Set the allocator flush threshold
 	void SetAllocatorFlushTreshold(idx_t threshold);

src/parallel/task_scheduler.cpp

@@ -257,7 +257,7 @@ void TaskScheduler::Signal(idx_t n) {
 #endif
 }
 
-void TaskScheduler::Yield() {
+void TaskScheduler::YieldThread() {
 #ifndef DUCKDB_NO_THREADS
 	std::this_thread::yield();
 #endif