custom coordinator bug

// Test: Custom Compiler Coordinator Override
//
// Validates that users can override the abstract coordinate event
// with their own pipeline implementation using cross-module overrides (~mod:event = ...).
//
// The custom coordinator prints a marker, then delegates to standard pipeline.

~import std/compiler
~import std/optimizer

const std = @import("std");
const ast = @import("ast");
const Program = ast.Program;

// Custom coordinator that wraps the default pipeline
// All compiler events must be module-qualified
~std/compiler:coordinate = custom-marker() |> std/compiler:context-create(program_ast, allocator)
| created c0 |> std/compiler:frontend(ctx: c0)
  | ctx c1 |> std/compiler:transform-taps(ctx: c1)
    | ctx c2 |> std/compiler:analysis(ctx: c2)
      | ctx c3 |> std/compiler:test-generation(ctx: c3)
        | ctx c4 |> std/optimizer:optimize(ctx: c4)
          | ctx c5 |> std/compiler:emission(ctx: c5)
            | ctx c6 => coordinated {
                c6.ctx.ast,
                c6.code,
                metrics: "Custom coordinator ran!"
              }
      | failed f => error f.message

// Helper event to print marker (must be comptime since it's called from coordinate handler)
~[comptime] event custom-marker {}

~proc custom-marker|zig {
    std.debug.print("CUSTOM COORDINATOR: Pipeline override active!\n", .{});
}

// Simple test event
~pub event hello {}

~proc hello|zig {
    std.debug.print("Hello from custom-compiled code!\n", .{});
}

~hello()