update estree-walker - closes #3977, closes #3979

Author: Rich-Harris

package-lock.json

@@ -70,7 +70,7 @@
     "eslint": "^6.3.0",
     "eslint-plugin-import": "^2.18.2",
     "eslint-plugin-svelte3": "^2.7.3",
-    "estree-walker": "^0.8.1",
+    "estree-walker": "^1.0.0",
     "is-reference": "^1.1.4",
     "jsdom": "^15.1.1",
     "kleur": "^3.0.3",

package.json

@@ -1,4 +1,4 @@
-import { walk, childKeys } from 'estree-walker';
+import { walk } from 'estree-walker';
 import { getLocator } from 'locate-character';
 import Stats from '../Stats';
 import { globals, reserved, is_valid } from '../utils/names';
@@ -37,13 +37,6 @@ interface ComponentOptions {
 	preserveWhitespace?: boolean;
 }
 
-// We need to tell estree-walker that it should always
-// look for an `else` block, otherwise it might get
-// the wrong idea about the shape of each/if blocks
-childKeys.EachBlock = childKeys.IfBlock = ['children', 'else'];
-childKeys.Attribute = ['value'];
-childKeys.ExportNamedDeclaration = ['declaration', 'specifiers'];
-
 export default class Component {
 	stats: Stats;
 	warnings: Warning[];