chore: restore original directory structure (project under code-review-graph-main/)

code-review-graph-main/tests/fixtures/sample_dead_guard.ts

@@ -0,0 +1,60 @@
+// Fixture for testing TypeScript/JavaScript dead-guard detection.
+//
+// Both TS and JS share the same tree-sitter if_statement node type.
+// The condition is wrapped in parenthesized_expression, which must be
+// unwrapped before checking for false/0 literals.
+
+function live_helper(): void {}
+
+function dead_false_call(): void {}
+
+function dead_zero_call(): void {}
+
+function live_in_else(): void {}
+
+function dead_in_consequence(): void {}
+
+function live_final_else(): void {}
+
+function live_in_if_true(): void {}
+
+function some_condition(): boolean {
+    return true;
+}
+
+function caller(): void {
+    live_helper(); // live -- no guard
+
+    if (false) {
+        dead_false_call(); // dead consequence
+    }
+}
+
+function zero_guard(): void {
+    if (0) {
+        dead_zero_call(); // dead consequence -- 0 is falsy
+    }
+}
+
+function else_branch(): void {
+    if (false) {
+        dead_in_consequence(); // dead consequence
+    } else {
+        live_in_else(); // live -- else branch
+    }
+}
+
+function elif_chain(): void {
+    if (false) {
+        dead_in_consequence(); // dead
+    } else if (some_condition()) {
+        live_final_else(); // live
+    }
+}
+
+function true_guard(): void {
+    // if true is NOT a dead guard -- consequence is live.
+    if (true) {
+        live_in_if_true(); // live
+    }
+}