Assert that the type of the cast is equal to the _unqualified_ type of the subexpression. Fixes a problem spotted by Nuno Lopes.

llvm-svn: 46158
diff --git a/clang/CodeGen/CGExprAgg.cpp b/clang/CodeGen/CGExprAgg.cpp
index 5836262..3781407 100644
--- a/clang/CodeGen/CGExprAgg.cpp
+++ b/clang/CodeGen/CGExprAgg.cpp
@@ -142,7 +142,7 @@
   QualType STy = E->getSubExpr()->getType().getCanonicalType();
   QualType Ty = E->getType().getCanonicalType();
   
-  assert(STy == Ty && "Implicit cast types must be equal");
+  assert(STy.getUnqualifiedType() == Ty && "Implicit cast types must be equal");
   
   Visit(E->getSubExpr());
 }