add unions, typedef_struct, char_contant, sneaky1 testcases

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/gsoc2009-sploving@11558 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/scilab/sneaky1_runme.sci

@@ -0,0 +1,15 @@
+exec loader.sce;
+
+x = add(3, 4);
+if x <> 7 then pause, end
+
+y = subtract(3,4);
+if y <> -1 then pause, end
+
+z = mul(3,4);
+if z <> 12 then pause, end
+
+w = divide(3,4);
+if w <> 0 then pause, end
+
+exit