feat(babel): Add optional chaining support to default babel preset (#682)

Author: promer94

core/poi/lib/babel/preset.js

@@ -123,7 +123,8 @@ module.exports = (
           require.resolve('@babel/runtime/package.json')
         )
       }
-    ]
+    ],
+    require('@babel/plugin-proposal-optional-chaining')
   ].filter(Boolean)
 
   return {

core/poi/package.json

@@ -19,6 +19,7 @@
     "@babel/core": "^7.1.6",
     "@babel/plugin-proposal-class-properties": "^7.1.0",
     "@babel/plugin-proposal-object-rest-spread": "^7.0.0",
+    "@babel/plugin-proposal-optional-chaining": "^7.9.0",
     "@babel/plugin-syntax-dynamic-import": "^7.0.0",
     "@babel/plugin-syntax-jsx": "^7.0.0",
     "@babel/plugin-transform-flow-strip-types": "^7.1.6",

yarn.lock

@@ -291,6 +291,11 @@
   resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz#9ea293be19babc0f52ff8ca88b34c3611b208670"
   integrity sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==
 
+"@babel/helper-plugin-utils@^7.8.0", "@babel/helper-plugin-utils@^7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz#9ea293be19babc0f52ff8ca88b34c3611b208670"
+  integrity sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==
+
 "@babel/helper-regex@^7.0.0":
   version "7.0.0"
   resolved "https://registry.npmjs.org/@babel/helper-regex/-/helper-regex-7.0.0.tgz#2c1718923b57f9bbe64705ffe5640ac64d9bdb27"
@@ -488,6 +493,14 @@
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/plugin-syntax-optional-catch-binding" "^7.0.0"
 
+"@babel/plugin-proposal-optional-chaining@^7.9.0":
+  version "7.9.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.9.0.tgz#31db16b154c39d6b8a645292472b98394c292a58"
+  integrity sha512-NDn5tu3tcv4W30jNhmc2hyD5c56G6cXx4TesJubhxrJeCvuuMpttxr0OnNCqbZGhFjLrg+NIhxxC+BK5F6yS3w==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.8.3"
+    "@babel/plugin-syntax-optional-chaining" "^7.8.0"
+
 "@babel/plugin-proposal-unicode-property-regex@^7.0.0":
   version "7.0.0"
   resolved "https://registry.npmjs.org/@babel/plugin-proposal-unicode-property-regex/-/plugin-proposal-unicode-property-regex-7.0.0.tgz#498b39cd72536cd7c4b26177d030226eba08cd33"
@@ -546,6 +559,13 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
+"@babel/plugin-syntax-optional-chaining@^7.8.0":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-optional-chaining/-/plugin-syntax-optional-chaining-7.8.3.tgz#4f69c2ab95167e0180cd5336613f8c5788f7d48a"
+  integrity sha512-KoK9ErH1MBlCPxV0VANkXW2/dw4vlbGDrFgz8bmUsBGYkFRcbRwMh6cIJubdPrkxRwuGdtCk0v/wPTKbQgBjkg==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.8.0"
+
 "@babel/plugin-syntax-typescript@^7.0.0":
   version "7.1.5"
   resolved "https://registry.npmjs.org/@babel/plugin-syntax-typescript/-/plugin-syntax-typescript-7.1.5.tgz#956a1f43dec8a9d6b36221f5c865335555fdcb98"