IDEA-89344: create inner class: make a class static when needed

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createInnerClassFromUsage/afterStaticModifierNeeded.java

@@ -0,0 +1,9 @@
+// "Create Inner Class 'Foo'" "true"
+public class Test {
+  static class A extends Foo {
+    
+  }
+
+    private static class Foo {
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createInnerClassFromUsage/beforeStaticModifierNeeded.java

@@ -0,0 +1,6 @@
+// "Create Inner Class 'Foo'" "true"
+public class Test {
+  static class A extends F<caret>oo {
+    
+  }
+}