enable delegate for interfaces in 1.8

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/changeSignature/DelegateInInterface.java

@@ -0,0 +1,3 @@
+interface SAM {
+  void <caret>foo();
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/changeSignature/DelegateInInterface_after.java

@@ -0,0 +1,7 @@
+interface SAM {
+    default void foo() {
+        foo(false);
+    }
+
+    void foo(boolean b);
+}