Reorganize tests

examples/c/switch.c

@@ -0,0 +1,20 @@
+int main() {
+    int a = 1;
+    int b = 0;
+    switch (a) {
+        case 0: {
+            b += 1;
+            break;
+        }
+        case 1: {
+            b += 2;
+            break;
+        }
+        default: {
+            b += 3;
+            break;
+        }
+    }
+
+    return b == 2;
+}