Ignore nested reference expressions in `chain-method-continuation`

[paul-dingemans]

Description

Ignore nested reference expressions in chain-method-continuation

Given code:

fun buildBar1(): Foo.Bar = Foo.Bar.builder().baz().baz.build()

fun buildBar2(): Foo.Bar = Foo.bar.Bar.builder().baz().baz.build()

fun buildBar3(): Foo.Bar = Foo.bar.bar.Bar.builder().baz().baz.build()

fun buildBar4(): Foo.Bar = Foo.Bar.baz.builder().baz().baz.build()

fun buildBar5(): Foo.Bar = Foo.baz().bar.Bar.builder().build()

Is now formatted as:

fun buildBar1(): Foo.Bar =
    Foo.Bar
        .builder()
        .baz()
        .baz
        .build()

fun buildBar2(): Foo.Bar =
    Foo.bar.Bar
        .builder()
        .baz()
        .baz
        .build()

fun buildBar3(): Foo.Bar =
    Foo.bar.bar.Bar
        .builder()
        .baz()
        .baz
        .build()

fun buildBar4(): Foo.Bar =
    Foo.Bar.baz
        .builder()
        .baz()
        .baz
        .build()

fun buildBar5(): Foo.Bar =
    Foo
        .baz()
        .bar.Bar
        .builder()
        .build()

Closes #2602

Checklist

Before submitting the PR, please check following (checks which are not relevant may be ignored):

• [X] Commit message are well written. In addition to a short title, the commit message also explain why a change is made.
• [X] At least one commit message contains a reference Closes #<xxx> or Fixes #<xxx> (replace<xxx> with issue number)
• [X] Tests are added
• [X] KtLint format has been applied on source code itself and violations are fixed
• [X] PR title is short and clear (it is used as description in the release changelog)
• [X] PR description added (background information)

Documentation is updated. See difference between snapshot and release documentation

• [ ] Snapshot documentation in case documentation is to be released together with a code change
• [ ] Release documentation in case documentation is related to a released version of ktlint and has to be published as soon as the change is merged to master