- Display the Kotlin version in kotlin-gradle-plugin. This is needed
because if "-version" is specified in compiler arguments, the "info"
level of the message printed by the compiler in CLICompiler prevents
it from being displayed by default (unless "--debug" is passed to
Gradle).
- Display the version of JRE the compiler is running on. This will be
helpful to diagnose Java 9 related issues in the future.
- In CLI, also display the executable name (kotlinc-jvm or kotlinc-js)
This makes "-verbose" not required for JPS to run correctly and
therefore allows to print more useful debugging stuff in the compiler
and read them in CLI, for example. The output will also be more readable
because there'll be no "output" messages
- render the whole line where the error/warning points to, if any, and another
line with '^', like other compilers do
- lowercase diagnostic severity
- decapitalize the message if it doesn't start with a proper name
Alexander Udalov