test(nes): modularize and expand NES conformance test suite (290 tests)

src/system/nes/conformance/helpers.zig

@@ -1,4 +1,4 @@
-// ponytail: simple stateless harness helpers without custom runner frameworks
+// simple stateless harness helpers without custom runner frameworks
 const std = @import("std");
 const testing = std.testing;
 const build_options = @import("build_options");
@@ -12,7 +12,7 @@ pub fn loadRomAlloc(allocator: std.mem.Allocator, relative_path: []const u8) ![]
     return try dir.readFileAlloc(testing.io, relative_path, allocator, @enumFromInt(10 * 1024 * 1024));
 }
 
-// ponytail: runRom asserts progress so test blocks can be concise 1-liners
+// runRom asserts progress so test blocks can be concise 1-liners
 pub fn runRom(relative_path: []const u8, frames: usize) !Nes {
     if (build_options.nes_test_roms_dir == null) return error.SkipZigTest;
     const rom_data = try loadRomAlloc(testing.allocator, relative_path);