Add test for legacy style names

[Frassle]

Long term I want to introduce a new snake_case based naming system to schemas. There's an internal design doc about this at https://docs.google.com/document/d/1ns07htpLjw0dJPn5p7TBPVULvwwYc1Pl7l1c1jdGXoY/edit.

As part of that we get the nice feature that nearly all current names are either valid and the same in both system (e.g. "foo"), or they look different in the current system (e.g. "fooBar"). But there are a handful of odd cases where we have providers using names that look like they should be new style snake case names (e.g. kubernetes has a load of "x_kubernetes_" properties).

To provide a way to ensure k8s can stay on the current name generation (even though it gives pretty odd results) this change adds a test with a schema demonstrating a load of snake_case names. When we do add the new naming system this test should not diff, excepting possibly setting an option if the new naming system is opt-out rather than opt-in.

[pulumi-bot]

Changelog

[uncommitted] (2024-02-15)