phase29ab(p8): add pattern6/7 ok fixtures and smokes

apps/tests/phase29ab_pattern6_scan_with_init_ok_min.hako

@@ -0,0 +1,19 @@
+// Phase 29ab P8: Pattern6 scan_with_init OK minimal
+// Expect: return index of "b" -> 1
+
+static box Main {
+    find_ok(s, ch) {
+        local i = 0
+        loop(i < s.length()) {
+            if s.substring(i, i + 1) == ch {
+                return i
+            }
+            i = i + 1
+        }
+        return -1
+    }
+
+    main() {
+        return Main.find_ok("abc", "b")
+    }
+}

apps/tests/phase29ab_pattern7_splitscan_ok_min.hako

@@ -0,0 +1,37 @@
+// Phase 29ab P8: Pattern7 split scan OK minimal
+// Expect: split("a,b,c", ",") -> length 3
+
+static box StringUtils {
+    split_ok(s, separator) {
+        local result = new ArrayBox()
+        if separator.length() == 0 {
+            result.push(s)
+            return result
+        }
+
+        local start = 0
+        local i = 0
+        loop(i <= s.length() - separator.length()) {
+            if s.substring(i, i + separator.length()) == separator {
+                result.push(s.substring(start, i))
+                start = i + separator.length()
+                i = start
+            } else {
+                i = i + 1
+            }
+        }
+
+        if start <= s.length() {
+            result.push(s.substring(start, s.length()))
+        }
+
+        return result
+    }
+}
+
+static box Main {
+    main() {
+        local result = StringUtils.split_ok("a,b,c", ",")
+        return result.length()
+    }
+}