GROOVY-5349: ICO file in distribution is broken/missing
remove invalid comment
GROOVY-6205 - META-INF/services/org.codehaus.groovy.runtime.ExtensionModule missing from groovy-all.jar
GROOVY-6205 - META-INF/services/org.codehaus.groovy.runtime.ExtensionModule missing from groovy-all.jar (minor tweak)
GROOVY-6207: Fix flow typing reset after if branch