Fix test for dev11 API changes.

Author: nickbutcher

JetNews/app/src/androidTest/java/com/example/jetnews/JetnewsUiTest.kt

@@ -50,7 +50,7 @@ class JetnewsUiTest {
     @Ignore("Ignoring because of https://issuetracker.google.com/154617105")
     @Test
     fun app_opensArticle() {
-        findAllBySubstring("Manuel Vivo").first().doClick()
-        findAllBySubstring("July 30 • 3 min read").first().assertIsDisplayed()
+        findAllBySubstring("Manuel Vivo")[0].doClick()
+        findAllBySubstring("July 30 • 3 min read")[0].assertIsDisplayed()
     }
 }

JetNews/app/src/androidTest/java/com/example/jetnews/TestHelper.kt

@@ -21,7 +21,7 @@ import androidx.compose.Composable
 import androidx.ui.material.MaterialTheme
 import androidx.ui.material.Surface
 import androidx.ui.test.ComposeTestRule
-import androidx.ui.test.SemanticsNodeInteraction
+import androidx.ui.test.SemanticsNodeInteractionCollection
 import androidx.ui.test.findAll
 import androidx.ui.test.hasSubstring
 import com.example.jetnews.ui.JetnewsApp
@@ -60,7 +60,7 @@ fun ComposeTestRule.setMaterialContent(children: @Composable() () -> Unit) {
     }
 }
 
-fun findAllBySubstring(text: String, ignoreCase: Boolean = false): List<SemanticsNodeInteraction> {
+fun findAllBySubstring(text: String, ignoreCase: Boolean = false): SemanticsNodeInteractionCollection {
     return findAll(
         hasSubstring(text, ignoreCase)
     )