[Bug]: 12.2.2 breaks branch coverage

Version

12.2.2

Steps to reproduce

1. Create a sample class with decorator like this

   import { Pipe, PipeTransform } from '@angular/core';
   import { ConfigService } from './config.service';
    
   @Pipe({
     name: 'config',
   })
   export class ConfigPipe implements PipeTransform {
     constructor(private service: ConfigService) {}
   

2. Execute and wondering why there are four branches.

Expected behavior

Expect that there are still zero branches.

Actual behavior

Four branches are counted.

Additional context

No response

Environment

System:
    OS: Windows 10 10.0.19043
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
  Binaries:
    Node: 16.14.2 - C:\nodejs\node.EXE
    npm: 8.5.0 - C:\nodejs\npm.CMD
  npmPackages:
    jest: ~28.1.0 => 28.1.3

[CSchulz]

I can confirm the issue is related to the forgotten emitDecoratorMetadata in our case. Fun fact the angular migration does not remove it automatically from the existing tsconfig.json files.

[ahnpnl]

Angular 12 removed the need of emitDecoratorMetadata so I think that was why the example app doesn’t have it. That option in general shouldn’t be needed anymore.

FYI with that option true, the emitted codes will be like in this example https://www.typescriptlang.org/tsconfig#emitDecoratorMetadata, and notice that design:paramtypes is in emitted codes. This design:paramtypes was replaced in the workaround mentioned in https://github.com/istanbuljs/istanbuljs/issues/70#issuecomment-975654329