add a couple more examples

Author: bmcutler

examples/05_cpp_static_analysis/submissions/buggy2.cpp

@@ -0,0 +1,5 @@
+int main() {
+foo:
+        /* auto x = 1; */
+	goto foo;
+}

examples/05_cpp_static_analysis/submissions/buggy3.cpp

@@ -0,0 +1,5 @@
+/* using auto in a comment */
+int main() {
+        auto x = 1; 
+        auto y = 2; 
+}