Fixed Basic tests linking in C++/CLI backend.

This was a regression introduced when fixing the visibility of this variable on Linux.

tests/Basic/Basic.cpp

@@ -14,7 +14,7 @@ Foo::Foo(Private p)
 {
 }
 
-DLL_API const int Foo::unsafe = 10;
+const int Foo::unsafe;
 
 const char* Foo::GetANSI()
 {

tests/Basic/Basic.h

@@ -39,7 +39,7 @@ public:
     IgnoredType ignoredType;
     int fixedArray[3];
     void* ptr;
-    static const int unsafe;
+    static const int unsafe = 10;
 
 	const char* GetANSI();
 	// TODO: VC++ does not support char16