Merge pull request swiftlang#35096 from nate-chandler/concurrency/irgen/rdar72329062

[TBDGen] @asyncHandlers don't have public async function pointers.

Author: nate-chandler

lib/TBDGen/TBDGen.cpp

@@ -721,7 +721,7 @@ void TBDGenVisitor::visitAbstractFunctionDecl(AbstractFunctionDecl *AFD) {
 
   visitDefaultArguments(AFD, AFD->getParameters());
 
-  if (AFD->isAsyncContext()) {
+  if (AFD->hasAsync()) {
     addSymbol(LinkEntity::forAsyncFunctionPointer(AFD));
   }
 }

test/TBD/async-function-pointer.swift

@@ -0,0 +1,7 @@
+// REQUIRES: VENDOR=apple 
+// RUN: %target-swift-frontend -emit-ir %s -enable-experimental-concurrency -validate-tbd-against-ir=all -module-name test | %FileCheck %s
+
+// CHECK: @"$s4test6testityyYFAD" = hidden global %swift.async_func_pointer
+
+@asyncHandler
+public func testit() { }