Some more typing-related fixes.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@163641 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Expression/ClangExpressionDeclMap.cpp b/source/Expression/ClangExpressionDeclMap.cpp
index 63e1be2..3686521 100644
--- a/source/Expression/ClangExpressionDeclMap.cpp
+++ b/source/Expression/ClangExpressionDeclMap.cpp
@@ -1455,7 +1455,7 @@
         if (log)
             log->PutCString("Not bothering to allocate a struct because no arguments are needed");
         
-        m_material_vars->m_allocated_area = NULL;
+        m_material_vars->m_allocated_area = 0UL;
         
         return true;
     }