java 9: hide inappropriate for interface modifier suggestions, ensure valid combination of modifiers (IDEA-171091)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/modifier19/afterMakeDefault.java

@@ -0,0 +1,10 @@
+// "Make 'I.foo' public" "true"
+interface I {
+  default void foo() { }
+}
+
+class A implements I {
+  {
+    this.foo();
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/modifier19/beforeMakeDefault.java

@@ -0,0 +1,10 @@
+// "Make 'I.foo' public" "true"
+interface I {
+  private void foo() { }
+}
+
+class A implements I {
+  {
+    this.fo<caret>o();
+  }
+}