Fix `_masterFunc2` fail flag caching and add fail flag identification to IPOPT #289

	name: PyOptSparse Windows Actions

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	build-windows:
	runs-on: windows-latest

	steps:
	- uses: actions/checkout@v2
	- uses: conda-incubator/setup-miniconda@v2
	with:
	python-version: 3.9
	miniforge-variant: Mambaforge
	channels: conda-forge,defaults
	channel-priority: strict
	activate-environment: pyos-build
	environment-file: .github/environment.yml
	- name: Install libpgmath
	shell: bash -l {0}
	run: \|
	conda activate pyos-build
	mamba install libpgmath
	- name: Build and install pyoptsparse
	shell: cmd /C CALL {0}
	run: \|
	call conda activate pyos-build
	set IPOPT_DIR=%CONDA_PREFIX%\Library
	set CC=cl
	set FC=flang
	set CC_LD=link
	python -m build -n -x .
	pip install --no-deps --no-index --find-links dist pyoptsparse
	- name: Run tests
	shell: bash -l {0}
	run: \|
	conda activate pyos-build
	cd tests
	testflo --pre_announce -v -n 1 .

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