Function compile_with_sources 

pub fn compile_with_sources(
    def: &Definition,
    descriptors: &[BackendDescriptor],
    calibrations: &[CalibrationArtifact],
    sources: &[SourceDescriptor],
    execution: Option<&ExecutionPolicy>,
) -> Result<Compiled, Refusal>

Compile with context source descriptors beside backend descriptors and calibrations (spec 032, 3.3.4), and optionally an execution policy. A version 1 definition ignores supplied sources, as an unbound backend descriptor changes nothing.