Formatting for-loop

[paul-dingemans]

Description

Keep formatting of for-loop in sync with default IntelliJ formatter until https://youtrack.jetbrains.com/issue/IDEA-293691/Format-Kotlin-for-loop is fixed. Now, code below does not throw indentation errors:

fun foo() {
    for (
    item in listOf(
        "a",
        "b"
    )) {
        println(item)
    }
}

The wrapping rule no longer forces the for-statement to be wrapped if only the expression contains a newline. So code above can be written as:

fun foo() {
    for (item in listOf(
        "a",
        "b"
    )) {
        println(item)
    }
}

Closes #1350

Checklist

• PR description added
• tests are added
• CHANGELOG.md is updated

In case of adding a new rule:

• README.md is updated
• Rule has been applied on Ktlint itself and violations are fixed