Transform the libc++ coroutine shell tests into normal .pass.cpp tests.

The shell test versions didn't get all of the flags normal tests
do, specifically warning flags. This patch makes them .pass.cpp tests,
and uses a lit.local.cfg to add -fcoroutines-ts and to make them
UNSUPPORTED when that flag isn't available.

llvm-svn: 304351

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.capacity/operator_bool.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/equal_comp.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.compare/less_comp.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.completion/done.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/address.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.export/from_address.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.hash/hash.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.prom/promise.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/destroy.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/coroutine.handle.resumption/resume.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.handle/void_handle.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.traits/promise_type.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_always.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <type_traits>
@@ -70,4 +66,8 @@ int main()
     static_assert(std::is_trivially_copyable<S>::value, "");
     static_assert(check_suspend_constexpr(), "");
   }
+  {
+    // suppress unused warnings for the global constexpr test variable
+    ((void)constexpr_sa);
+  }
 }

libcxx/test/std/experimental/language.support/support.coroutines/coroutine.trivial.awaitables/suspend_never.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <type_traits>
@@ -72,4 +68,8 @@ int main()
     static_assert(std::is_trivially_copyable<S>::value, "");
     static_assert(check_suspend_constexpr(), "");
   }
+  {
+    // suppress unused warnings for the global constexpr test variable
+    ((void)constexpr_sn);
+  }
 }

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/await_result.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
@@ -58,6 +54,7 @@ coro_t f(int n) {
     co_return;
   }
   int val = co_await A{};
+  ((void)val);
   set_value(42);
 }
 

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/bool_await_suspend.pass.cpp

@@ -9,14 +9,10 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
 
 // FIXME: When run under UBSAN this test hits an assertion inside Clang
 // XFAIL: ubsan
 
-// RUN: %build -fcoroutines-ts
-// RUN: %run
-
 #include <experimental/coroutine>
 #include <cassert>
 

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/expected.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/fullexpr-dtor.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
@@ -67,6 +63,7 @@ coro2 a() {
     assert(alive == 1);
     assert(ctor_called == 1);
     assert(dtor_called == 0);
+    ((void)x);
   }
   assert(alive == 0);
   assert(dtor_called == 1);
@@ -75,7 +72,8 @@ coro2 a() {
 coro2 b() {
   reset();
   {
-    co_await Bug{};
+    auto x = co_await Bug{};
+    ((void)x);
     assert(ctor_called == 1);
     assert(dtor_called == 1);
     assert(alive == 0);
@@ -102,7 +100,8 @@ coro2 c() {
 coro2 d() {
   reset();
   {
-    co_yield 42;
+    auto x = co_yield 42;
+    ((void)x);
     assert(ctor_called == 1);
     assert(dtor_called == 1);
     assert(alive == 0);

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/generator.pass.cpp

@@ -9,14 +9,10 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
 
 // FIXME: When run under UBSAN this test hits an assertion inside Clang
 // XFAIL: ubsan
 
-// RUN: %build -fcoroutines-ts
-// RUN: %run
-
 #include <experimental/coroutine>
 #include <vector>
 #include <cassert>

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/go.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>
@@ -166,9 +162,7 @@ goroutine pusher(channel& left, channel& right)
   }
 }
 
-const int N = 100; //100'000'000;
-const int repeat = 1;
-
+const int N = 100;
 channel* c = new channel[N + 1];
 
 int main() {

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/multishot_func.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <cassert>

libcxx/test/std/experimental/language.support/support.coroutines/end.to.end/oneshot_func.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 #include <experimental/coroutine>
 #include <vector>

libcxx/test/std/experimental/language.support/support.coroutines/includes.pass.cpp

@@ -9,10 +9,6 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03, c++11
-// REQUIRES: fcoroutines-ts
-
-// RUN: %build -fcoroutines-ts
-// RUN: %run
 
 // <experimental/coroutine>
 
@@ -20,8 +16,6 @@
 
 #include <experimental/coroutine>
 
-
-
 int main(){
   // std::nothrow is not implicitly defined by the compiler when the include is
   // missing, unlike other parts of <new>. Therefore we use std::nothrow to