Verify invalidated uniform locations when there is no current program. #371

	# This workflow will install Python dependencies, run tests and lint with a single version of Python
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: WebGL lint

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 2
	- name: Set up Python 3.9
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	- name: Install dependencies
	run: \|
	sudo apt update
	sudo apt-get install libxml2-utils
	python -m pip install --upgrade pip
	pip install --upgrade setuptools
	pip install flake8 pytest
	if [ -f .github/workflows/requirements.txt ]; then pip install -r .github/workflows/requirements.txt; fi
	- name: Run WebGL Linter
	run: \|
	python ./sdk/tests/py/lint/lint.py -p

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