Added a compilation test for a free function with a class parameter named "ret".

Signed-off-by: Dimitar Dobrev <dpldobrev@yahoo.com>

tests/Basic/Basic.cpp

@@ -70,3 +70,8 @@ int Hello::RetEnum(Enum e)
 {
     return (int)e;
 }
+
+int unsafeFunction(const Bar& ret)
+{
+    return ret.A;
+}

tests/Basic/Basic.h

@@ -61,3 +61,5 @@ public:
 
     int RetEnum(Enum);
 };
+
+int unsafeFunction(const Bar& ret);