Methods in `Simplifier.cs` that only access read-only members were made `readonly` #738

	name: 'Interactive Test'

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- '*'

	jobs:
	Test:
	strategy:
	matrix:
	os: [windows-latest, ubuntu-latest, macos-latest]

	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2
	with:
	submodules: 'recursive'

	- name: Setup .NET Core 5
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: 5.0.202

	- name: Setup .NET 7
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: '7.0.100'

	- name: Build Tests # We need it to be able to retry
	run: \|
	dotnet build Sources/Tests/InteractiveWrapperUnitTests -c Release
	dotnet build Sources/Tests/TerminalUnitTests -c Release

	- name: Test Interactive Wrapper
	run: \|
	dotnet test "Sources/Tests/InteractiveWrapperUnitTests" -c Release

	- name: Test Terminal Lib
	run: \|
	dotnet test "Sources/Tests/TerminalUnitTests" -c Release

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