add android completion tests

- add android plugin test classes as test library
- add base android test cases for kotlin, setting up android facet and sdk

generators/src/org/jetbrains/kotlin/generators/tests/GenerateTests.kt

@@ -145,6 +145,7 @@ import org.jetbrains.kotlin.idea.highlighter.*
 import org.jetbrains.jet.lang.resolve.android.AbstractAndroidXml2KConversionTest
 import org.jetbrains.jet.android.AbstractCrossParserTest
 import org.jetbrains.jet.lang.resolve.android.AbstractAndroidBoxTest
+import org.jetbrains.jet.android.AbstractAndroidCompletionTest
 
 fun main(args: Array<String>) {
     System.setProperty("java.awt.headless", "true")
@@ -710,6 +711,10 @@ fun main(args: Array<String>) {
         testClass<AbstractJvmBasicCompletionTest>("org.jetbrains.kotlin.idea.kdoc.KDocCompletionTestGenerated") {
             model("kdoc/completion")
         }
+        
+        testClass(javaClass<AbstractAndroidCompletionTest>()) {
+            model("android/completion", recursive = false, extension = null)
+        }
     }
 
     testGroup("idea/tests", "compiler/testData") {