referencing the same module by different import names has regressed

[leecannon]

Zig Version

0.14.0-dev.944+0e99f517f

Zig Language Server Version

0.14.0-dev.72+d8084a3

Client / Code Editor / Extensions

VSCode vscode-zig

Steps to Reproduce and Observed Behavior

Since https://github.com/zigtools/zls/pull/1983 the ZLS build runner no longer captures having multiple import names for the same module, resulting in it being unable to resolve @import's that the zig compiler is fine with.

// build.zig
const std = @import("std");
pub fn build(b: *std.Build) void {
    const exe = b.addExecutable(.{
        .name = "fff",
        .root_source_file = b.path("main.zig"),
        .target = b.standardTargetOptions(.{}),
        .optimize = b.standardOptimizeOption(.{}),
    });

    exe.root_module.addImport("self", &exe.root_module);

    const run_cmd = b.addRunArtifact(exe);
    const run_step = b.step("run", "Run the app");
    run_step.dependOn(&run_cmd.step);
}

// main.zig
const root = @import("root");
const self = @import("self");

pub fn main() void {}

With 0.14.0-dev.72+d8084a3 build runner:

{
  "deps_build_roots": [],
  "packages": [
    {
      "name": "root",
      "path": "/home/lee/src/fff/src/main.zig"
    }
  ],
  // the rest is fine
}%

With 0.14.0-dev.67+312b7dc (commit before https://github.com/zigtools/zls/pull/1983) build runner:

$ zig build --build-runner ../zls/src/build_runner/0.12.0.zig
{
  "deps_build_roots": [],
  "packages": [
    {
      "name": "root",
      "path": "/home/lee/src/fff/src/main.zig"
    },
    {
      "name": "self",
      "path": "/home/lee/src/fff/src/main.zig"
    }
  ],
  // the rest is fine
}%

This seems to be due to Module.DependencyIterator.next building a set of unique modules disregarding multiple import names. https://github.com/ziglang/zig/blob/cf87a1a7cf57123aad533a73d8e0fa4d4916a674/lib/std/Build/Module.zig#L382-L387

Expected Behavior

The build runners packages list should include all import names a module has not just one.

Relevant log output

No response