Suppress clang warnings in some tests

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@246399 91177308-0d34-0410-b5e6-96231b3b80d8

test/libcxx/double_include.sh.cpp

@@ -15,6 +15,12 @@
 // RUN: %cxx -o %t.exe %t.first.o %t.second.o %flags %link_flags
 // RUN: %run
 
+
+// Prevent <ext/hash_map> from generating deprecated warnings for this test.
+#if defined(__DEPRECATED)
+#undef __DEPRECATED
+#endif
+
 #include <algorithm>
 #include <array>
 #include <bitset>
@@ -50,6 +56,7 @@
 #include <deque>
 #include <exception>
 #include <experimental/algorithm>
+#include <experimental/any>
 #include <experimental/chrono>
 #include <experimental/dynarray>
 #include <experimental/optional>

test/libcxx/test/config.py

@@ -578,6 +578,10 @@ class Configuration(object):
             self.cxx.addWarningFlagIfSupported('-Wno-pessimizing-move')
             self.cxx.addWarningFlagIfSupported('-Wno-c++11-extensions')
             self.cxx.addWarningFlagIfSupported('-Wno-user-defined-literals')
+            # TODO(EricWF) Remove the unused warnings once the test suite
+            # compiles clean with them.
+            self.cxx.addWarningFlagIfSupported('-Wno-unused-local-typedef')
+            self.cxx.addWarningFlagIfSupported('-Wno-unused-variable')
             std = self.get_lit_conf('std', None)
             if std in ['c++98', 'c++03']:
                 # The '#define static_assert' provided by libc++ in C++03 mode