Convert COMPILE_ASSERT to static_assert

client/simple_string_dictionary.cc

Index: client/simple_string_dictionary.cc
diff --git a/client/simple_string_dictionary.cc b/client/simple_string_dictionary.cc
index c8e9c98d64d7a7352a6540aa97b4f1f6749b43a5..a1a24a10cc71d3ac2964b386674c5b98e9b93090 100644
--- a/client/simple_string_dictionary.cc
+++ b/client/simple_string_dictionary.cc
@@ -29,9 +29,9 @@ typedef TSimpleStringDictionary<1, 1, 1> SimpleStringDictionaryForAssertion;
 #if CXX_LIBRARY_VERSION >= 2011
 // In C++11, check that TSimpleStringDictionary has standard layout, which is
 // what is actually important.
-COMPILE_ASSERT(
+static_assert(
     std::is_standard_layout<SimpleStringDictionaryForAssertion>::value,
-    SimpleStringDictionary_must_be_standard_layout);
+    "SimpleStringDictionary must be standard layout");
 #else
 // In C++98 (ISO 14882), section 9.5.1 says that a union cannot have a member
 // with a non-trivial ctor, copy ctor, dtor, or assignment operator. Use this