`svelte-check` should fail when no files are checked

[DetachHead]

Description

tsc fails if no files were checked:

> tsc
error TS18003: No inputs were found in config file 'C:/project/tsconfig.json'. Specified 'include' paths were '[]' and 'exclude' paths were '[]'.


Found 1 error.

however svelte-check does not:

> svelte-check --tsconfig .\src\tsconfig.json
Debugger attached.

====================================
Loading svelte-check in workspace: c:\project
Getting Svelte diagnostics...

====================================
svelte-check found 0 errors and 0 warnings in 0 files

Proposed solution

fail if there were no files checked, as this almost certainly means there's an issue with your config

Alternatives

No response

Additional Information, eg. Screenshots

No response

[gustavojms]

Hey, i'm willing to take this implementation, can it be assigned to me? Also it will be helpful if possible to specify all files that need to be changed to make this enhancement.

[dummdidumm]

Sure, go ahead! Change is likely scoped to inside getDiagnostics within packages/svelte-check/src/index.ts