Tests

Make more `Opcodes` hold a `FieldType` #75

	name: Tests

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	stable:
	name: Run tests on stable rust
	runs-on: ubuntu-latest
	steps:
	- name: Get latest stable Rust
	run: rustup toolchain install stable --profile minimal
	- name: Check out source
	uses: actions/checkout@v2
	- name: Run tests
	run: cargo test --all
	beta:
	name: Check compilation on beta rust
	runs-on: ubuntu-latest
	steps:
	- name: Get latest beta Rust
	run: rustup toolchain install beta --profile minimal
	- name: Check out source
	uses: actions/checkout@v2
	- name: Check compilation
	run: cargo check
	nightly:
	name: Check compilation on nightly rust
	runs-on: ubuntu-latest
	steps:
	- name: Get latest nightly Rust
	run: rustup toolchain install nightly --profile minimal
	- name: Check out source
	uses: actions/checkout@v2
	- name: Check compilation
	run: cargo check

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