Don't inline in CoroSplit

Author: fpasserby

clang/test/CodeGenCoroutines/pr65054.cpp

@@ -55,6 +55,6 @@ MyTask FooBar() {
 // FRONTEND: attributes #[[address_attr]] = {{.*}}alwaysinline
 
 // CHECK-O0: define{{.*}}@_Z6FooBarv.resume
-// CHECK-O0: call{{.*}}@_ZN7Awaiter13await_suspendESt16coroutine_handleIvE
+// CHECK-O0: call{{.*}}@__await_suspend_helper__Z6FooBarv_await(
 // CHECK-O0-NOT: store
 // CHECK-O0: ret void

llvm/lib/Transforms/Coroutines/CoroSplit.cpp

@@ -123,11 +123,6 @@ void Lowerer::lowerAwaitSuspend(CoroAwaitSuspendInst *CB) {
 
   CB->replaceAllUsesWith(NewCall);
   CB->eraseFromParent();
-
-  InlineFunctionInfo FnInfo;
-  auto InlineRes = InlineFunction(*NewCall, FnInfo);
-  assert(InlineRes.isSuccess() && "Expected inlining to succeed");
-  (void)InlineRes;
 }
 
 void Lowerer::lowerAwaitSuspends(Function &F) {