linter crash on a respected rule (restrict-plus-operands) when launching vue-cli service lint, works fine with tslint

Version

3.10.0

Reproduction link

https://github.com/JeremieANACHE/linter-crash-repro

Environment info

Environment Info:

  System:
    OS: macOS 10.14.6
    CPU: (4) x64 Intel(R) Core(TM) i5-6267U CPU @ 2.90GHz
  Binaries:
    Node: 10.7.0 - ~/.nvm/versions/node/v10.7.0/bin/node
    Yarn: Not Found
    npm: 6.1.0 - ~/.nvm/versions/node/v10.7.0/bin/npm
  Browsers:
    Chrome: 76.0.3809.132
    Firefox: Not Found
    Safari: 12.1.2
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0 
    @vue/babel-plugin-transform-vue-jsx:  1.0.0 
    @vue/babel-preset-app:  3.10.0 
    @vue/babel-preset-jsx:  1.1.0 
    @vue/babel-sugar-functional-vue:  1.0.0 
    @vue/babel-sugar-inject-h:  1.0.0 
    @vue/babel-sugar-v-model:  1.0.0 
    @vue/babel-sugar-v-on:  1.1.0 
    @vue/cli-overlay:  3.10.0 
    @vue/cli-plugin-babel: ^3.10.0 => 3.10.0 
    @vue/cli-plugin-typescript: ^3.10.0 => 3.10.0 
    @vue/cli-plugin-unit-jest: ^3.10.0 => 3.10.0 
    @vue/cli-service: ^3.10.0 => 3.10.0 
    @vue/cli-shared-utils:  3.10.0 
    @vue/component-compiler-utils:  2.6.0 (3.0.0)
    @vue/preload-webpack-plugin:  1.1.1 
    @vue/test-utils: 1.0.0-beta.29 => 1.0.0-beta.29 
    @vue/web-component-wrapper:  1.2.0 
    jest-serializer-vue:  2.0.2 
    typescript: ^3.4.3 => 3.5.3 
    vue: ^2.6.10 => 2.6.10 
    vue-class-component: ^7.1.0 => 7.1.0 
    vue-cli-plugin-i18n: ^0.6.0 => 0.6.0 
    vue-cli-plugin-vuetify: ^0.6.1 => 0.6.1 
    vue-hot-reload-api:  2.3.3 
    vue-i18n: ^8.0.0 => 8.12.0 
    vue-i18n-extract:  0.4.14 
    vue-i18n-ts:  0.1.0 
    vue-jest:  3.0.4 
    vue-loader:  15.7.1 
    vue-property-decorator: ^8.2.2 => 8.2.2 
    vue-router: ^3.0.3 => 3.1.3 
    vue-style-loader:  4.1.2 
    vue-template-compiler: ^2.6.10 => 2.6.10 
    vue-template-es2015-compiler:  1.9.1 
    vuetify: ^2.0.0 => 2.0.4 
    vuetify-loader: ^1.2.2 => 1.3.0 
    vuex: ^3.0.1 => 3.1.1 
  npmGlobalPackages:
    @vue/cli: 3.10.0

Steps to reproduce

1. clone project

2. install dependencies via npm i or npm install

3. launch linter : npm run lint or via vue ui then going to tasks -> lint

4. tslint rule restrict-plus-operands successfully fails : cannot read property 'flags' of undefined

5. (optional) try running tslint --project tslint.json : works fine

What is expected?

tslint should not crash

What is actually happening?

tslint crashes on a respected rule

---

rule is respected, which is why it's even more strange