WTF::Vector cross-container overflow ASAN support

https://bugs.webkit.org/show_bug.cgi?id=261220
rdar://113692853

Reviewed by David Kilzer.

Added check in ASAN builds for container overflow

* Source/WTF/wtf/Vector.h:
(WTF::Malloc>::asanBufferSizeWillChangeTo):
(WTF::Malloc>::uncheckedAppend):
* Tools/TestWebKitAPI/Tests/WTF/Vector.cpp:
(TestWebKitAPI::TEST):

Originally-landed-as: 1393b61. rdar://117808918
Canonical link: https://commits.webkit.org/270346@main

Source/WTF/wtf/Vector.h

@@ -1307,6 +1307,8 @@ inline void Vector<T, inlineCapacity, OverflowHandler, minCapacity, Malloc>::asa
     if (!buffer())
         return;
 
+    RELEASE_ASSERT_WITH_MESSAGE(newSize <= capacity(), "Attempt to expand size (%lu) beyond current capacity (%lu)", newSize, capacity());
+
     // Change allowed range.
     __sanitizer_annotate_contiguous_container(buffer(), endOfBuffer(), buffer() + size(), buffer() + newSize);
 #else