[roottest] add linkdef for std::complex

Seems to be, required on Windows

Author: linev

roottest/root/io/newstl/ComplexTest.h

@@ -3,7 +3,8 @@
 
 #include "TObject.h"
 #include <complex>
-#include <vector>
+
+// #include <vector>
 
 class Test: public TObject
 {
@@ -22,4 +23,10 @@ class Test: public TObject
 
   ClassDefOverride(Test, 1);
 };
+
+#ifdef __ROOTCLING__
+#pragma link C++ class std::complex<double>+;
+#pragma link C++ class Test+;
+#endif
+
 #endif /* Test_hh */