Proposal: Allow `protected` fields to be visible t...

# language-proposals

[benleggiero]

Proposal: Allow protected fields to be visible to extension functions.

Example:

in Foo.kt:

data class Foo(protected var bar: Bar) {
    var stringValue: String get() = bar.stringValue
}

in Foo Extensions.kt:

public val Foo.intValue: Int get() = bar.intValue // Today, this is a compile-time error