do not return lambda parameter type as denotable in RefactoringUtil (IDEA-136617)

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

@@ -0,0 +1,16 @@
+import java.util.function.Supplier;
+class Test {
+
+  private void a()
+  {
+    b((s) -> {
+      System.out.println(newMethod((Object) s));
+    });
+  }
+
+    private boolean newMethod(Object s) {
+        return s;
+    }
+
+    void b(Supplier s) {}
+}