API test WTF.StaticStringImpl crashing in TestWebKitAPI::WTF_StaticStringImpl_Test...

API test WTF.StaticStringImpl crashing in TestWebKitAPI::WTF_StaticStringImpl_Test::TestBody() + 3188
https://bugs.webkit.org/show_bug.cgi?id=171702

Reviewed by Filip Pizlo.

The test was supposed to use the MAKE_STATIC_STRING_IMPL macro.  I had previously
changed it to instantiate an automatic StaticStringImpl (i.e. stack allocated) to
confirm that the test will detect a regression.  Unfortunately, I forgot to
change it back to using MAKE_STATIC_STRING_IMPL before I landed the test.
This patch fixes that.

* TestWebKitAPI/Tests/WTF/StringImpl.cpp:
(TestWebKitAPI::neverDestroyedString):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@216231 268f45cc-cd09-0410-ab3c-d52691b4dbfc