Various fixes for HelloWorld. (#27)

backend.native/tests/build.gradle

@@ -30,8 +30,8 @@ public class KonanTest extends DefaultTask {
             classpath = project.configurations.cli_bc
             args "-output", "${sourceBc.absolutePath}",
                     "-runtime", "${runtimeBc.absolutePath}",
-                    "${sourceKt.absolutePath}",
-                    project.project(':runtime').file('src/main/kotlin')
+                    "-headers", project.project(':runtime').file('src/main/kotlin'),
+                    "${sourceKt.absolutePath}"
 
             jvmArgs "-Djava.library.path=${backendNative.buildDir.canonicalPath}/nativelibs"
         }
@@ -75,11 +75,9 @@ task sum (type:KonanTest) {
     source = "codegen/function/sum.kt"
 }
 
-/* Investigate
 task objectInitialization(type: KonanTest) {
     source = "codegen/object/initialization.kt"
 }
-*/
 
 /* task objectBasic(type: KonanTest) {
     source = "$codegen/klass/basic.kt"
@@ -101,7 +99,16 @@ task sum_3const(type: KonanTest) {
     source = "codegen/function/sum_3const.kt"
 }
 
+/* TODO: enable, once kotlin.String -> kotlin_native.String is mapped.
+task hello0(type: KonanTest) {
+    source = "runtime/basic/hello0.kt"
+}
+
+task hello1(type: KonanTest) {
+    source = "runtime/basic/hello1.kt"
+    } */
+
 // TODO: waiting for boolean to be implemented
 //task bool_yes(type: KonanTest) {
 //    source = "codegen/function/boolean.kt"
-//}
+//}

backend.native/tests/runtime/basic/hello0.kt

@@ -0,0 +1,4 @@
+// TODO: remove kotlin_native.io once overrides are in place.
+fun main(args : Array<String>) {
+  kotlin_native.io.print("Hello, world!")
+}

backend.native/tests/runtime/basic/hello1-test.c

@@ -0,0 +1,11 @@
+extern void *resolve_symbol(const char*);
+
+int
+run_test() {
+  void (*main)(void*) = resolve_symbol("kfun:main");
+  
+  main((void*)0);
+
+  return 0;
+}
+

backend.native/tests/runtime/basic/hello1.kt

@@ -0,0 +1,4 @@
+// TODO: remove kotlin_native.io once overrides are in place.
+fun main(args : Array<String>) {
+  kotlin_native.io.print(kotlin_native.io.readLine())
+}