Move some tests that now pass with LLVM 3.0 from failing_tests to tests/

tests/min-uint-2.ispc

@@ -0,0 +1,13 @@
+
+export uniform int width() { return programCount; }
+
+export void f_f(uniform float r[], uniform float a[]) {
+    unsigned int i = (unsigned int)a[programIndex];
+    r[programIndex] =  min((unsigned int)20, i);
+}
+
+export void result(uniform float r[]) { 
+    r[programIndex] = 1+programIndex;
+}
+
+