Unicode comment is not compatible with Angular-CLI in `app.module.ts`

[KaiserKatze]

Versions

Angular CLI: 1.7.3
Node: 8.9.4
OS: win32 x64
Angular: 5.2.9
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

@angular/cdk: 5.2.4
@angular/cli: 1.7.3
@angular/material: 5.2.4
@angular-devkit/build-optimizer: 0.3.2
@angular-devkit/core: 0.3.2
@angular-devkit/schematics: 0.3.2
@ngtools/json-schema: 1.2.0
@ngtools/webpack: 1.10.2
@schematics/angular: 0.3.2
@schematics/package-update: 0.3.2
typescript: 2.5.3
webpack: 3.11.0

Repro steps

• Step 1
  Insert Unicode strings (let's say Chinese) as comments before import block;
• Step 2
  Run any generate command, such as:

ng generate component TestUnicode

• Step 3
  Open app.module.ts, you will find Angular-CLI inserted the new import phrase at wrong location instead of appending it at the end of import block;
• Step 4
  Remove Unicode commend, the Earth rotates again.

Observed behavior

Desired behavior

1. Please notify new Angular developers Unicode/UTF-8 is not fully supported by Angular-CLI;
2. I wish Angular-CLI support Unicode comments in app.module.ts in the future.

Mention any other details that might be useful (optional)

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