Enable testing C++ coroutines TS.

am: fd86c1f3ed

Change-Id: If3c6543c0f018c35b43ab3a0f78d9a5ef0eb77f7

Android.bp

@@ -179,6 +179,7 @@ cc_binary {
     cppflags: [
         "-fsized-deallocation",
         "-fexceptions",
+        "-fcoroutines-ts",
         "-Wno-format-zero-length",
         "-Wno-implicit-fallthrough",
         "-Wno-non-virtual-dtor",

utils/libcxx/android/test/config.py

@@ -107,6 +107,7 @@ class Configuration(libcxx.test.config.Configuration):
         self.config.available_features.add('c++experimental')
         self.config.available_features.add('c++fs')
         self.config.available_features.add('c++filesystem')
+        self.config.available_features.add('fcoroutines-ts')
         std_pattern = re.compile(r'-std=(c\+\+\d[0-9x-z])')
         match = std_pattern.search(self.cxx.cxx_template)
         if match: