split tests according to expected language level

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/interfaceMethods/DefaultMethodVisibility.java

@@ -0,0 +1,14 @@
+interface OfInt extends Sink<Integer> {
+  default void accept(Integer i) {}
+}
+interface Sink<T> extends Block<T> {
+}
+
+interface Block<T> {
+  public void accept(T t);
+}
+
+
+class Hello1 implements Sink<Integer>, OfInt {}
+class Hello2 implements OfInt, Sink<Integer>{}
+

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/interfaceMethods/ExtensionMethodSyntax.java

@@ -0,0 +1,8 @@
+interface I {
+  void m1() <error descr="Deprecated extension method syntax">default</error> { }
+
+  default void m2() <error descr="Deprecated extension method syntax">default</error> { }
+
+  @SuppressWarnings("extensionSyntax")
+  void m3() default { }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/interfaceMethods/ExtensionMethods.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2000-2012 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.
+ */
+
+class C {
+  interface I {
+    int i = 42;
+    void m() default { }
+  }
+
+  interface II extends I {
+    void m() default {
+      I.super.m();
+      <error descr="Unqualified super reference is not allowed in extension method">super.m</error>();
+
+      System.out.println(I.super.i);
+      System.out.println<error descr="Cannot resolve method 'println(?)'">(<error descr="Unqualified super reference is not allowed in extension method">super.i</error>)</error>;
+    }
+
+    void ma();
+  }
+
+  void test() {
+    new I(){}.m();
+
+    new II() {
+      public void ma() {
+        <error descr="'C.I' is not an enclosing class">I.super</error>.m();
+        II.super.m();
+        <error descr="Abstract method 'ma()' cannot be accessed directly">II.super.ma()</error>;
+      }
+    }.m();
+  }
+}
+
+class D {
+  <error descr="Extension methods can only be used within an interface">void m()</error> default { }
+}
+
+interface IllegalMods {
+  <error descr="Static methods in interfaces should have a body">static void m1()</error>;
+  <error descr="Illegal combination of modifiers: 'static' and 'default'">static</error> void m2() default { }
+  <error descr="Illegal combination of modifiers: 'static' and 'default'">static</error> <error descr="Illegal combination of modifiers: 'default' and 'static'">default</error> void m3() { }
+
+  <error descr="Illegal combination of modifiers: 'abstract' and 'default'">abstract</error> void m4() default { }
+  <error descr="Illegal combination of modifiers: 'abstract' and 'default'">abstract</error> <error descr="Illegal combination of modifiers: 'default' and 'abstract'">default</error> void m5() { }
+
+  <error descr="Extension method should have a body">default void m6()</error>;
+
+  <error descr="Modifier 'default' not allowed here">default</error> int i;
+  <error descr="Modifier 'default' not allowed here">default</error> interface X { }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/interfaceMethods/InheritUnrelatedDefaults.java

@@ -0,0 +1,3 @@
+interface B { default void foo() {} }
+interface C { default void foo() {} }
+class <error descr="D inherits unrelated defaults for foo() from types B and C">D</error> implements B, C {}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/interfaceMethods/NotInheritFromUnrelatedDefault.java

@@ -0,0 +1,15 @@
+interface FirstParent {
+
+    default int doSomething() {
+        return 1;
+    }
+}
+
+interface SecondParent {
+
+    int doSomething();
+}
+
+class <error descr="Class 'SecondParent' must either be declared abstract or implement abstract method 'doSomething()' in 'SecondParent'">FirstSon</error> implements FirstParent, SecondParent {}
+
+<error descr="Class 'SecondSon' must either be declared abstract or implement abstract method 'doSomething()' in 'SecondParent'">class SecondSon implements SecondParent, FirstParent</error> {}