When `output.module` is true: `Cannot read properties of undefined (reading 'arguments')`

[gian1200]

Bug Description

Following #409, when building a project with ESM, the following error appears:

Error parsing bundle asset "<redacted>\dist\public\index.mjs": Cannot read properties of undefined (reading 'arguments') {
  cause: TypeError: Cannot read properties of undefined (reading 'arguments')
      at getModulesLocations (<redacted>\node_modules\webpack-bundle-analyzer\lib\parseUtils.js:236:24)
      at Object.ExpressionStatement (<redacted>\node_modules\webpack-bundle-analyzer\lib\parseUtils.js:43:35)
      at c (<redacted>\node_modules\acorn-walk\dist\walk.js:58:37)
      at Object.skipThrough (<redacted>\node_modules\acorn-walk\dist\walk.js:186:39)
      at c (<redacted>\node_modules\acorn-walk\dist\walk.js:58:37)
      at base.Program.base.BlockStatement.base.StaticBlock (<redacted>\node_modules\acorn-walk\dist\walk.js:198:7)
      at base.Program.base.BlockStatement.base.StaticBlock (<redacted>\node_modules\acorn-walk\dist\walk.js:198:7)
      at c (<redacted>\node_modules\acorn-walk\dist\walk.js:58:37)
      at Object.recursive (<redacted>\node_modules\acorn-walk\dist\walk.js:59:7)
      at parseBundle (<redacted>\node_modules\webpack-bundle-analyzer\lib\parseUtils.js:25:8)
      at Object.getViewerData (<redacted>\node_modules\webpack-bundle-analyzer\lib\analyzer.js:80:22)
}

Link to Minimal Reproduction and step to reproduce

https://github.com/gian1200/webpack-bundle-analyzer-reproducer-409

Steps:

1. Run 'npm install'
2. Run 'npm run build'
3. See error in console

If experiments.outputModule and output.module are commented (from .config\webpack.common.mjs), then there is no error

Expected Behavior

Clean build

Actual Behavior

Error in console

Environment

System:
    OS: Windows 11 10.0.26200
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i5-1145G7 @ 2.60GHz
    Memory: 1.98 GB / 15.71 GB
  Binaries:
    Node: 24.11.1 - C:\nvm4w\nodejs\node.EXE
    npm: 11.6.2 - C:\nvm4w\nodejs\npm.CMD
  Browsers:
    Chrome: 143.0.7499.42
    Edge: Chromium (140.0.3485.54)
    Internet Explorer: 11.0.26100.7309
  Packages:
    webpack: ^5.103.0 => 5.103.0 
    webpack-bundle-analyzer: ^5.1.0 => 5.1.0 
    webpack-cli: ^6.0.1 => 6.0.1 
    webpack-merge: ^6.0.1 => 6.0.1

Is this a regression?

No

Last Working Version

No response

Additional Context

No response