Add diagnostic tests against Java 9

These tests currently won't run if you don't have environment variable
JDK_9 set up

compiler/tests/org/jetbrains/kotlin/checkers/AbstractDiagnosticsWithJdk9Test.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.checkers;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.kotlin.test.ConfigurationKind;
+import org.jetbrains.kotlin.test.TestJdkKind;
+
+import java.io.File;
+import java.util.List;
+import java.util.Map;
+
+public abstract class AbstractDiagnosticsWithJdk9Test extends AbstractDiagnosticsTest {
+    @NotNull
+    @Override
+    protected ConfigurationKind getConfigurationKind() {
+        return ConfigurationKind.ALL;
+    }
+
+    @NotNull
+    @Override
+    protected TestJdkKind getTestJdkKind() {
+        return TestJdkKind.FULL_JDK_9;
+    }
+
+    @Override
+    protected void doMultiFileTest(
+            @NotNull File file,
+            @NotNull Map<String, ModuleAndDependencies> modules,
+            @NotNull List<TestFile> testFiles
+    ) {
+        if (System.getenv("JDK_9") == null) {
+            // Skip this test if no environment variable JDK_9 is set up
+            return;
+        }
+        super.doMultiFileTest(file, modules, testFiles);
+    }
+}

compiler/tests/org/jetbrains/kotlin/checkers/DiagnosticsWithJdk9TestGenerated.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.checkers;
+
+import com.intellij.testFramework.TestDataPath;
+import org.jetbrains.kotlin.test.JUnit3RunnerWithInners;
+import org.jetbrains.kotlin.test.KotlinTestUtils;
+import org.jetbrains.kotlin.test.TargetBackend;
+import org.jetbrains.kotlin.test.TestMetadata;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+import java.util.regex.Pattern;
+
+/** This class is generated by {@link org.jetbrains.kotlin.generators.tests.TestsPackage}. DO NOT MODIFY MANUALLY */
+@SuppressWarnings("all")
+@TestMetadata("compiler/testData/diagnostics/testsWithJava9")
+@TestDataPath("$PROJECT_ROOT")
+@RunWith(JUnit3RunnerWithInners.class)
+public class DiagnosticsWithJdk9TestGenerated extends AbstractDiagnosticsWithJdk9Test {
+    public void testAllFilesPresentInTestsWithJava9() throws Exception {
+        KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/testData/diagnostics/testsWithJava9"), Pattern.compile("^(.+)\\.kt$"), TargetBackend.ANY, true);
+    }
+
+    @TestMetadata("kt11167.kt")
+    public void testKt11167() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/testsWithJava9/kt11167.kt");
+        doTest(fileName);
+    }
+}