Gradle: Drop FunctionalTestSuite, instead add main source set to tests.

Author: greenrobot-team

tests/objectbox-java-test/build.gradle

@@ -5,6 +5,16 @@ uploadArchives.enabled = false
 targetCompatibility = '1.7'
 sourceCompatibility = '1.7'
 
+// we have tests in the main source set
+// to make Gradle pick them up, add the dir to the test source set
+sourceSets {
+    test {
+        java {
+            srcDirs += ['src/main/java']
+        }
+    }
+}
+
 dependencies {
     compile project(':objectbox-java')
     compile 'org.greenrobot:essentials:3.0.0-RC1'