Fixes KT-19853.
The CREATOR field is a static field on a Parcelable class which is not
visible from Kotlin since the necessary metadata would have to be in a
Companion object which may not exist.
This commit adds a [parcelableCreator] function to kotlinx.parcelize,
which is optimized to a direct field access whenever possible.
There seems to be no point in configuring the compiler argument per
project. This argument will be deleted soon anyway, when we remove
support for JDK 1.6 & 1.7.
Also remove `disableDeprecatedJvmTargetWarning`. It didn't have any
effect in all modules where it was applied because these modules
reassign `freeCompilerArgs` anyway, with
`-Xsuppress-deprecated-jvm-target-warning` in it.
Dex can't merge class files from both android-extensions-runtime and parcelize-runtime, so we have to keep only one copy of each class.
Instead of @Deprecated annotations, there are new diagnostics (without quick-fixes yet).
The goal is to allow simple usages (@Parcelize alone) but forbid kotlinx.android.synthetic.Parceler usage.
Vyacheslav Gerasimov