[analyzer] Type information from C++ new expressions is perfect.

This improves our handling of dynamic_cast and devirtualization for
objects allocated by 'new'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180051 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/inline.cpp b/test/Analysis/inline.cpp
index a16fa00..62bce28 100644
--- a/test/Analysis/inline.cpp
+++ b/test/Analysis/inline.cpp
@@ -351,9 +351,7 @@
 
   void testCastViaNew(B *b) {
     Grandchild *g = new (b) Grandchild();
-    // FIXME: We actually now have perfect type info because of 'new'.
-    // This should be TRUE.
-    clang_analyzer_eval(g->foo() == 42); // expected-warning{{UNKNOWN}}
+    clang_analyzer_eval(g->foo() == 42); // expected-warning{{TRUE}}
 
     g->x = 42;
     clang_analyzer_eval(g->x == 42); // expected-warning{{TRUE}}