extract method: do not declare variables after call with local class defined in extracted method (IDEA-46775)

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

@@ -0,0 +1,8 @@
+class Test {
+  void foo() {
+    <selection>class X {}
+    X x;
+    </selection>
+    x = null;
+  }
+}