Write a test for renderAsState composition failure

[zach-klippenstein]

workflow-kotlin/workflow-ui/compose/src/androidTest/java/com/squareup/workflow1/ui/compose/RenderAsStateTest.kt

Lines 248 to 249 in d0e02ac

	@Ignore("https://github.com/square/workflow-kotlin/issues/504")
	@Test fun runtimeIsCancelledWhenCompositionFails() {

I don't think there's currently a way to test this behavior. Asked in the kotlin slack.

[zach-klippenstein]

Turns out this is a Compose bug. Filed: https://issuetracker.google.com/issues/197442069