TestRunner support in test's build.gradle

* Fixes to tests
 * RunKonanTest runs tests build with TestRunner
 * Standalone tests

backend.native/tests/codegen/inline/defaultArgs_linkTest_main.kt

@@ -1,10 +1,6 @@
-package codegen.inline.defaultArgs_linkTest_main
+import a.*
 
-import kotlin.test.*
-
-import codegen.inline.defaultArgs_linkTest.a.*
-
-@Test fun runTest() {
+fun main(args: Array<String>) {
     println(foo(5))
     println(foo(5, 42))
 }