suppress GCC warning about noexcept functions changing mangling

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@299385 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -466,7 +466,8 @@ if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
 elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
     add_compile_flags_if_supported(
         -Wno-literal-suffix
-        -Wno-c++14-compat)
+        -Wno-c++14-compat
+        -Wno-noexcept-type)
 endif()
 if (LIBCXX_ENABLE_WERROR)
   add_compile_flags_if_supported(-Werror)

utils/libcxx/test/config.py

@@ -813,6 +813,7 @@ class Configuration(object):
         self.cxx.addWarningFlagIfSupported('-Wno-pessimizing-move')
         self.cxx.addWarningFlagIfSupported('-Wno-c++11-extensions')
         self.cxx.addWarningFlagIfSupported('-Wno-user-defined-literals')
+        self.cxx.addWarningFlagIfSupported('-Wno-noexcept-type')
         # These warnings should be enabled in order to support the MSVC
         # team using the test suite; They enable the warnings below and
         # expect the test suite to be clean.