extract method: disable make static when extracting from default method; ensure static extracting from constant in interface (IDEA-134636)

java/java-tests/testData/refactoring/extractMethod/Method2InterfaceFromConstant.java

@@ -0,0 +1,3 @@
+interface I {
+    String FOO = <selection>"hello";</selection>
+}

java/java-tests/testData/refactoring/extractMethod/Method2InterfaceFromConstant_after.java

@@ -0,0 +1,10 @@
+import org.jetbrains.annotations.NotNull;
+
+interface I {
+    String FOO = newMethod();
+
+    @NotNull
+    private static String newMethod() {
+        return "hello";
+    }
+}

java/java-tests/testData/refactoring/extractMethod/Method2InterfaceFromStatic.java

@@ -0,0 +1,5 @@
+interface I {
+    static void foo () {
+        <selection>System.out.println("hello");</selection>
+    }
+}

java/java-tests/testData/refactoring/extractMethod/Method2InterfaceFromStatic_after.java

@@ -0,0 +1,9 @@
+interface I {
+    static void foo () {
+        newMethod();
+    }
+
+    private static void newMethod() {
+        System.out.println("hello");
+    }
+}