Merge r163519 - Remove the WTF_COMPILER_SUPPORTS_CXX_GENERALIZED_INITIALIZERS macro
https://bugs.webkit.org/show_bug.cgi?id=128267

Reviewed by Andreas Kling.

Source/WTF:

Remove the WTF_COMPILER_SUPPORTS_CXX_GENERALIZED_INITIALIZERS macro that was manually defined for compilers
that support the C++11 initializer lists. The feature is well supported in Clang, MSVC and also GCC. It
was actually already used unguarded in HashSet.

* wtf/Compiler.h:
* wtf/HashMap.h:
(WTF::HashMap::HashMap):
* wtf/Vector.h:
(WTF::Vector::Vector):

Tools:

Remove the COMPILER_SUPPORTS(CXX_GENERALIZED_INITIALIZERS) as the underlying macro is also
being removed since the feature is supported by all the compilers the project approves.

* TestWebKitAPI/Tests/WTF/HashMap.cpp:
(TestWebKitAPI::TEST):
* TestWebKitAPI/Tests/WTF/Vector.cpp:
(TestWebKitAPI::TEST):

git-svn-id: http://svn.webkit.org/repository/webkit/releases/WebKitGTK/webkit-2.4@170803 268f45cc-cd09-0410-ab3c-d52691b4dbfc