get() {
            val nameReference = when (val sourcePsi = psi) {
                // usual `foo.bar.baz` case
                is KtDotQualifiedExpression -> sourcePsi.selectorExpression

                // short `foo` case, or implicit invoke call like `foo.bar.baz()`
                else -> sourcePsi
            }

            return nameReference as? KtNameReferenceExpression
        }

    hashmap.put("foo", "bar");
    hashmap.put(null, "baz");

    assertEquals(hashmap.toString(), Maps.toStringImpl(hashmap));
  }

  public void testToStringImplWithNullValues() throws Exception {
    Map<String, @Nullable String> hashmap = Maps.newHashMap();
    hashmap.put("foo", "bar");
    hashmap.put("baz", null);

    assertEquals(hashmap.toString(), Maps.toStringImpl(hashmap));
  }

    hashmap.put("foo", "bar");
    hashmap.put(null, "baz");

    assertEquals(hashmap.toString(), Maps.toStringImpl(hashmap));
  }

  public void testToStringImplWithNullValues() throws Exception {
    Map<String, @Nullable String> hashmap = Maps.newHashMap();
    hashmap.put("foo", "bar");
    hashmap.put("baz", null);

    assertEquals(hashmap.toString(), Maps.toStringImpl(hashmap));
  }

                }
            }
        }

        if (this is FirImplicitInvokeCall) {

            // If we have a PSI expression like `Foo.Bar.Baz()` and try to resolve `Bar` part,
            // and the only FIR that we have for that PSI is an implicit invoke call, that means that