Must match the layout of LLVMRustCoverageBranchRegion.
Must match the layout of LLVMRustCoverageCodeRegion.
A reference to an instance of an abstract βcounterβ that will yield a value in a coverage
report. Note that id has different interpretations, depending on the kind:
Corresponds to struct llvm::coverage::CounterExpression.
A span of source code coordinates to be embedded in coverage metadata.
Must match the layout of LLVMRustCoverageMCDCBranchRegion.
Must match the layout of LLVMRustCoverageMCDCDecisionRegion.