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

code-review-graph-main/tests/fixtures/sample_zig.zig

@@ -0,0 +1,38 @@
+const std = @import("std");
+const util = @import("./sample_zig_util.zig");
+
+pub fn main() !void {
+    std.debug.print("hello\n", .{});
+    const x = helper(2);
+    _ = x;
+    util.noop();
+}
+
+fn helper(x: i32) i32 {
+    return x + 1;
+}
+
+pub const Point = struct {
+    x: i32,
+    y: i32,
+
+    pub fn init(x: i32, y: i32) Point {
+        return .{ .x = x, .y = y };
+    }
+
+    pub fn distance(self: Point, other: Point) f32 {
+        _ = other;
+        return @intCast(helper(self.x));
+    }
+};
+
+const Color = enum { red, green, blue };
+
+pub const Shape = union(enum) {
+    circle: f32,
+    square: f32,
+};
+
+test "helper increments" {
+    try expect(helper(1) == 2);
+}