Add @typescript-eslint/no-misused-promises rule

https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/no-misused-promises.md

Author: sindresorhus

index.js

@@ -172,6 +172,13 @@ module.exports = {
 		'@typescript-eslint/no-for-in-array': 'error',
 		'@typescript-eslint/no-inferrable-types': 'error',
 		'@typescript-eslint/no-misused-new': 'error',
+		'@typescript-eslint/no-misused-promises': [
+			'error',
+			{
+				checksConditionals: true,
+				checksVoidReturn: true,
+			}
+		],
 
 		// TODO: Enable this again when I target ESM output in all my TypeScript projects
 		// '@typescript-eslint/no-namespace': 'error',

package.json

@@ -42,15 +42,15 @@
 		"simple"
 	],
 	"devDependencies": {
-		"@typescript-eslint/eslint-plugin": "^1.12.0",
-		"@typescript-eslint/parser": "^1.12.0",
+		"@typescript-eslint/eslint-plugin": "^1.13.0",
+		"@typescript-eslint/parser": "^1.13.0",
 		"ava": "^2.2.0",
-		"eslint": "^5.16.0",
+		"eslint": "^6.1.0",
 		"temp-write": "^4.0.0",
 		"typescript": "^3.5.3"
 	},
 	"peerDependencies": {
-		"@typescript-eslint/eslint-plugin": ">=1.12.0",
+		"@typescript-eslint/eslint-plugin": ">=1.13.0",
 		"eslint": ">=5.16.0",
 		"typescript": ">=3.5.3"
 	}