fix:(ast) implement soft delete for `Unset()` #131

	name: Compatibility Test Linux-X64\|ARM

	on: pull_request

	jobs:
	build:
	strategy:
	matrix:
	go-version: [1.15.x, 1.16.x, 1.17.x, 1.18.x, 1.19.x, 1.20.x, 1.21.x]
	os: [arm, X64]
	runs-on: ${{ matrix.os }}
	steps:
	- name: Clear repository
	run: sudo rm -fr $GITHUB_WORKSPACE && mkdir $GITHUB_WORKSPACE

	- uses: actions/checkout@v2

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: ${{ matrix.go-version }}

	- uses: actions/cache@v2
	with:
	path: ~/go/pkg/mod
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.os }}-go-

	- name: main
	run: GOMAXPROCS=4 go test -v -gcflags="all=-l" -race github.com/bytedance/sonic

	- name: ast
	run: GOMAXPROCS=4 go test -v -gcflags="all=-l" -race github.com/bytedance/sonic/ast

	- name: qemu
	run: sh scripts/qemu.sh

Provide feedback