Allow --build with Intermediate Errors - shouldn't happen on tsconfig errors

🔎 Search Terms

intermediate error

🕗 Version & Regression Information

This is about new feature in 5.6

⏯ Playground Link

💻 Code

tsconfig.json

{
    "extends": "../wrong/path/to/some/tsconfig.json",
    "compilerOptions": {
        // nothing, expects to inherit things
    }
}

🙁 Actual behavior

When compiling such project, tsc does complain that it cannot find the base config, however it continues building. This is a big problem when the base config contains important things like "outDir": "${configDir}/lib" - TS will happily build using the defaults, writing a ton of .js and .d.ts files next to the source files.

🙂 Expected behavior

For tsconfig.json file errors, do not continue building the project.

Additional information about the issue

No response

Reproduce the behavior with the provided tsconfig.json, which extends a nonexistent path, and invoke tsc with --build. Trace how the compiler handles the missing base configuration during project builds; done means tsconfig errors stop the build instead of emitting files with defaults.