Steps to reproduce

• JaCoCo version: 0.8.5.201910111838
• Operating system: macOS Catalina 10.15
• Tool integration: JaCoCo Gradle plugin
• Complete executable reproducer: https://github.com/qwwdfsad/coverage-test, package coverage.delegates, run command ./gradlew test jacocoTestReport, report directory: build/jacocoHtml
• Steps:
  Implement any interface with delegation. Example from the reproducer:

class DelegatedList : List<Int> by ArrayList() {
    override val size: Int
        get() = 42
}

and use it as

val list = DelegatedList()

Expected behaviour

Coverage reports only one missing method, size

Actual behaviour

All List methods are reported as not covered