extract method: copy parameters annotations to the extracted method when applicable (IDEA-40617)

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

@@ -0,0 +1,21 @@
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+class X {
+  @NotNull
+  public X fun1(int x) {
+    return this;
+  }
+
+  public X fun2(@Nullable @SuppressWarnings("unused") String b) {
+    <selection>
+    if (b != null) {
+      int x = 1;
+      return fun1(x);
+    }
+    </selection>
+
+    int x = 0;
+    return null;
+  }
+}