feat: support ESLint v5

Author: THETCR

lib/rules/eventmap-params.js

@@ -62,8 +62,7 @@ module.exports = {
           eventParamName = 'event',
           templateInstanceParamName = 'templateInstance',
           preventDestructuring = 'neither',
-        } =
-          context.options[0] || {};
+        } = context.options[0] || {};
 
         ensureParamName(
           eventHandler.params[0],

lib/util/ast/getPropertyName.js

@@ -1,7 +1,8 @@
 module.exports = function getPropertyName(property) {
   if (property.type === 'Literal') {
     return property.value;
-  } else if (property.type === 'Identifier') {
+  }
+  if (property.type === 'Identifier') {
     return property.name;
   }
   return false;

lib/util/executors/getExecutorsFromTest.js

@@ -9,9 +9,11 @@ module.exports = function getExecutorsFromTest(test) {
     case 'MemberExpression':
       if (isMeteorProp(test, 'isClient')) {
         return new Set(['browser', 'cordova']);
-      } else if (isMeteorProp(test, 'isServer')) {
+      }
+      if (isMeteorProp(test, 'isServer')) {
         return new Set(['server']);
-      } else if (isMeteorProp(test, 'isCordova')) {
+      }
+      if (isMeteorProp(test, 'isCordova')) {
         return new Set(['cordova']);
       }
       return invariant(false, 'Unkown Meteor prop should never be reached');
@@ -23,7 +25,8 @@ module.exports = function getExecutorsFromTest(test) {
           getExecutorsFromTest(test.left),
           getExecutorsFromTest(test.right)
         );
-      } else if (test.operator === '||') {
+      }
+      if (test.operator === '||') {
         return union(
           getExecutorsFromTest(test.left),
           getExecutorsFromTest(test.right)