separate compiler and plugin tests

compiler/testData/codegen/extensionFunctions/generic.jet

@@ -0,0 +1,21 @@
+import java.util.*
+
+fun <T> ArrayList<T>.findAll(predicate: fun (T) : Boolean): ArrayList<T> {
+  val result = ArrayList<T>()
+  for(val t in this) {
+    if (predicate(t)) result.add(t)
+  }
+  return result
+}
+
+
+fun box(): String {
+  val list: ArrayList<String> = ArrayList<String>()
+  list.add("Prague")
+  list.add("St.Petersburg")
+  list.add("Moscow")
+  list.add("Munich")
+
+  val m: ArrayList<String> = list.findAll<String>({(name: String) => name.startsWith("M")})
+  return if (m.size() == 2) "OK" else "fail"
+}