Fixed test paths in JS tests

js/js.tests/test/org/jetbrains/k2js/test/BasicTest.java

@@ -33,7 +33,7 @@ import static org.jetbrains.k2js.test.utils.JsTestUtils.convertFileNameToDotJsFi
 public abstract class BasicTest extends TestWithEnvironment {
 
     private static final boolean DELETE_OUT = false;
-    private static final String TEST_FILES = "js.translator/testFiles/";
+    private static final String TEST_FILES = "js/js.translator/testFiles/";
     private static final String CASES = "cases/";
     private static final String OUT = "out/";
     private static final String KOTLIN_JS_LIB = pathToTestFilesRoot() + "kotlin_lib.js";

js/js.tests/test/org/jetbrains/k2js/test/config/TestConfig.java

@@ -63,7 +63,7 @@ public final class TestConfig extends Config {
                 libFiles.add(file);
             } catch (FileNotFoundException e) {
                 //TODO: throw generic expception
-                throw new AssertionError("Lib files not found.");
+                throw new IllegalStateException(e);
             }
 
         }