Correct for new rules regarding implicitly deleted special members. http://llvm.org/bugs/show_bug.cgi?id=10191

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@134248 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/unordered_map b/include/unordered_map
index 394be32..e1381f7 100644
--- a/include/unordered_map
+++ b/include/unordered_map
@@ -691,7 +691,12 @@
                   const hasher& __hf, const key_equal& __eql,
                   const allocator_type& __a);
     // ~unordered_map() = default;
-    // unordered_map& operator=(const unordered_map& __u) = default;
+    _LIBCPP_INLINE_VISIBILITY
+    unordered_map& operator=(const unordered_map& __u)
+    {
+        __table_ = __u.__table_;
+        return *this;
+    }
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     unordered_map& operator=(unordered_map&& __u)
         _NOEXCEPT_(is_nothrow_move_assignable<__table>::value);
@@ -1295,7 +1300,12 @@
                        const hasher& __hf, const key_equal& __eql,
                        const allocator_type& __a);
     // ~unordered_multimap() = default;
-    // unordered_multimap& operator=(const unordered_multimap& __u) = default;
+    _LIBCPP_INLINE_VISIBILITY
+    unordered_multimap& operator=(const unordered_multimap& __u)
+    {
+        __table_ = __u.__table_;
+        return *this;
+    }
 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     unordered_multimap& operator=(unordered_multimap&& __u)
         _NOEXCEPT_(is_nothrow_move_assignable<__table>::value);