[lua] Fix a bug in the class hierachy code, where the methods were not propagated,

if the name ordering was in a certain order.
Added new example programs (dual, embed) and runtime tests for test-suite.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10177 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/lua/embed/example.c

@@ -0,0 +1,21 @@
+/* File : example.c */
+
+/* A global variable */
+double Foo = 3.0;
+
+/* Compute the greatest common divisor of positive integers */
+int gcd(int x, int y) {
+  int g;
+  g = y;
+  while (x > 0) {
+    g = x;
+    x = y % x;
+    y = g;
+  }
+  return g;
+}
+
+void greeting()
+{
+  printf("Hello from the C function 'greeting'\n");
+}