Function validate_sources_parseable 

pub fn validate_sources_parseable(
    files: &[FileContent],
) -> AnalysisValidation<Vec<FileContent>>

Validate source content can be parsed, accumulating ALL parse errors.

This function attempts to parse each file content and accumulates all parse errors instead of failing at the first one.

Note

This is a validation-level function. Actual parsing uses the language-specific analyzers from the analyzers module.