rename file prior to conversion to kotlin

Test: N/A
Bug: N/A
Change-Id: I657d2cf501d1373a5e15fb27911c938c1d4ef467
diff --git a/build-system/integration-test/application/src/test/java/com/android/build/gradle/integration/application/GenFolderApiTest.java b/build-system/integration-test/application/src/test/java/com/android/build/gradle/integration/application/GenFolderApiTest.kt
similarity index 100%
rename from build-system/integration-test/application/src/test/java/com/android/build/gradle/integration/application/GenFolderApiTest.java
rename to build-system/integration-test/application/src/test/java/com/android/build/gradle/integration/application/GenFolderApiTest.kt