fix error message when instance method/property called as static method/property (#8921)
Summary:
This PR:
- Update error message when an instance method/property is used as a static method/property
- Link to this [Issue](https://gist.github.com/shayne-fletcher/
4cece69915f546ea68983172aaa7318e)
Pull Request resolved: https://github.com/facebook/hhvm/pull/8921
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Reviewed By: Wilfred
Differential Revision:
D32119355
Pulled By: shayne-fletcher
fbshipit-source-id:
b313f1241debe4df7b77b247b3c3c86c0c7f887f