make static: remove inappropriate modifiers, add method body if needed (IDEA-197813)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/modifier18/afterDefaultMakeStatic.java

@@ -0,0 +1,12 @@
+// "Make 'foo' static" "true"
+interface I {
+  static void foo() {
+    System.out.println();
+  }
+}
+
+class B {
+  {
+    I.foo();
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/modifier18/beforeDefaultMakeStatic.java

@@ -0,0 +1,12 @@
+// "Make 'foo' static" "true"
+interface I {
+  default void foo() {
+    System.out.println();
+  }
+}
+
+class B {
+  {
+    I.f<caret>oo();
+  }
+}