fix(cem-expanded-types): pass correct options to ts.convertCompilerOptionsFromJson

[maxpatiiuk]

When debugging cem-expanded-types, I noticed that this line is called with incorrect argument:

cem-tools/packages/expanded-types/src/cem-plugin.ts

Line 77 in 691a720

const compilerOptions = ts.convertCompilerOptionsFromJson(config, ".");

The convertCompilerOptionsFromJson function is being called with config, but should be called with config.compilerOptions instead.

At present, ts.convertCompilerOptionsFromJson returns these errors since it receives incorrect config object:

[
  {
    "messageText": "Unknown compiler option '$schema'.",
    "category": 1,
    "code": 5023
  },
  {
    "messageText": "Unknown compiler option 'extends'.",
    "category": 1,
    "code": 5023
  },
  {
    "messageText": "Unknown compiler option 'include'.",
    "category": 1,
    "code": 5023
  },
  {
    "messageText": "Unknown compiler option 'files'.",
    "category": 1,
    "code": 5023
  },
  {
    "messageText": "Unknown compiler option 'compilerOptions'.",
    "category": 1,
    "code": 5023
  }
]

[break-stuff]

Will this differ based on the TS version teams are using?

[maxpatiiuk]

Hmm, doesn't seem so

I.e looking at the git blame in the typescript codebase, they have been calling convertCompilerOptionsFromJson with configJson.config.compilerOptions in this file for the last 7 years:

https://github.com/microsoft/TypeScript/blob/bc14459f3b6af5a9547631a590fdfc0fdf35d042/src/harness/fourslashImpl.ts#L332

git blame:

https://github.com/microsoft/TypeScript/blame/bc14459f3b6af5a9547631a590fdfc0fdf35d042/src/harness/fourslashImpl.ts#L332