[PATCH] [libcxx] Add <experimental/type_traits> for LFTS

[Agustín Bergé]

================
Comment at: include/experimental/type_traits:416
@@ +415,3 @@
+
+#endif /* __has_feature(cxx_variable_templates) */
+
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Shouldn't this go right after `is_convertible_v`?

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Comment at: test/experimental/utilities/meta/meta.type.synop/meta.unary.prop.pass.cpp:108
@@ +107,3 @@
+        typedef void T;
+        static_assert(ex::is_literal_type_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_literal_type_v<T>), const bool>::value, "");
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`void` is not a literal type in C++11, does that matter?

http://reviews.llvm.org/D5742