Use __func__ instead of __FUNCTION__.

third_party/WebKit/Source/wtf/Compiler.h

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 129 matching lines @@
 #endif
 
 
 /* WTF_PRETTY_FUNCTION */
 
 #if COMPILER(GCC)
 #define WTF_PRETTY_FUNCTION __PRETTY_FUNCTION__
 #elif COMPILER(MSVC)
 #define WTF_PRETTY_FUNCTION __FUNCSIG__
 #else
-#define WTF_PRETTY_FUNCTION __FUNCTION__
+#define WTF_PRETTY_FUNCTION __func__
 #endif
 
 /* NO_SANITIZE_UNRELATED_CAST - Disable runtime checks related to casts between
  * unrelated objects (-fsanitize=cfi-unrelated-cast or -fsanitize=vptr). */
 
 #if COMPILER(CLANG)
 #define NO_SANITIZE_UNRELATED_CAST __attribute__((no_sanitize("cfi-unrelated-cast", "vptr")))
 #else
 #define NO_SANITIZE_UNRELATED_CAST
 #endif
 
 /* WTF_NON_EXPORTED_BASE; similar NON_EXPORTED_BASE in base/compiler_specific.h */
 
 #if COMPILER(MSVC)
 #define WTF_NON_EXPORTED_BASE(code) __pragma(warning(suppress:4275)) code
 #else
 #define WTF_NON_EXPORTED_BASE(code) code
 #endif
 
 #endif /* WTF_Compiler_h */