llvm-project

fea69aa1 - LLVMCoverage: Unify getCoverageForFile and getCoverageForFunction. NFC (#120842)

LLVMCoverage: Unify getCoverageForFile and getCoverageForFunction. NFC (#120842) Since #119952, `getCoverageForFile` and `getCoverageForFunction` have similar structure each other. Ther merged method `addFunctionRegions` has two lambda subfunctions. * `getCoverageForFile` - `MainFileID` may be `nullopt`. - `shouldProcess` picks up relevant records along `FileIDs` that is scanned based on `MainFileID`. They may have expanded source files. - `shouldExpand` takes the presense of `MainFileID` into account. * `getCoverageForFunction` - This assumes the presense of `MainFileID`. - `shouldProcess` picks up records that belong only to `MainFileID`. - `shouldExpand` assumes the presense of `MainFileID`. This change introduces a wrapper class `MergeableCoverageData` for further merging instances. At the moment, this returns `CoverageData` including `buildSegments()`. This change itself is NFC.