Convert COMPILE_ASSERT to static_assert

util/file/string_file_writer_test.cc

Index: util/file/string_file_writer_test.cc
diff --git a/util/file/string_file_writer_test.cc b/util/file/string_file_writer_test.cc
index f0ec72f75e958da164887f85767abcaef9f82d7d..628b7d0893a7094bde8e0b07666d52e72b00fd67 100644
--- a/util/file/string_file_writer_test.cc
+++ b/util/file/string_file_writer_test.cc
@@ -354,8 +354,8 @@ TEST(StringFileWriter, SeekInvalid) {
   EXPECT_EQ(1, writer.Seek(0, SEEK_CUR));
   EXPECT_TRUE(writer.string().empty());
 
-  COMPILE_ASSERT(SEEK_SET != 3 && SEEK_CUR != 3 && SEEK_END != 3,
-                 three_must_be_invalid_for_whence);
+  static_assert(SEEK_SET != 3 && SEEK_CUR != 3 && SEEK_END != 3,
+                "three must be invalid for whence");

[Mark Mentovai, 2014/10/01 03:55:12]

This can be a numeral 3 now, since there’s no restriction on starting a string
literal with a number like there is on starting an identifier with a number.

[scottmg, 2014/10/01 16:37:19]

Done.

   EXPECT_LT(writer.Seek(0, 3), 0);
 
   writer.Reset();