Iteration name provider does not apply to non parameterized tests in Spock 2

[ldaley]

Issue description

In Spock 1, the iteration name provider also applied to non parameterized tests. In Spock 2, it does not.

How to reproduce

spock-2-iteration-name-provider-bug.zip

The above is a complete Gradle project that can run a test with Spock 1 or 2.

Works:

$ ./gradlew test -Pspock1

> Task :test

pkg.ExampleSpec > test [suffix] STARTED

pkg.ExampleSpec > parameterized [suffix] STARTED

pkg.ExampleSpec > parameterized [suffix] STARTED

Not works (Spock 2):

$ ./gradlew test

> Task :test

ExampleSpec > test STARTED

ExampleSpec > parameterized [suffix] STARTED

ExampleSpec > parameterized [suffix] STARTED

[leonard84]

@ldaley could you motivate your usecase of a bit more.
With Spock 2.0 we actually get proper nesting for iterations so those nodes won't be templated.

See also the comment #1238 (review)

[ldaley]

@leonard84 I commented on that PR.