fix(yaml): update parser (#4931)

* test: add tests

* fix(yaml): update parser

package.json

@@ -60,8 +60,8 @@
     "typescript-eslint-parser": "17.0.0",
     "unicode-regex": "1.0.1",
     "unified": "6.1.6",
-    "yaml": "1.0.0-rc.7",
-    "yaml-unist-parser": "1.0.0-rc.3"
+    "yaml": "ikatyang/yaml#a765c1ee16d6b8a5e715564645f2b85f7e04828b",
+    "yaml-unist-parser": "ikatyang/yaml-unist-parser#cd4f73325b3fc02a6d17842d0d9cee0dfc729c9b"
   },
   "devDependencies": {
     "@babel/cli": "7.0.0-beta.55",

tests/yaml_comment/__snapshots__/jsfmt.spec.js.snap

@@ -94,6 +94,14 @@ A:
 
 `;
 
+exports[`in-empty-item-without-newlline.yml - yaml-verify 1`] = `
+a:
+  #123~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+a:
+  #123
+
+`;
+
 exports[`root.yml - yaml-verify 1`] = `
 #hello world
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

tests/yaml_comment/in-empty-item-without-newlline.yml

@@ -0,0 +1,2 @@
+a:
+  #123

tests/yaml_mapping/__snapshots__/jsfmt.spec.js.snap

@@ -206,6 +206,56 @@ key:
 
 `;
 
+exports[`merge-twice.yml - yaml-verify 1`] = `
+.anchors:
+  - &anchor1
+    key: value
+  - &anchor2
+    another: prop
+
+foo:
+  bar: baz
+  <<: *anchor1
+  <<: *anchor2
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.anchors:
+  - &anchor1
+    key: value
+  - &anchor2
+    another: prop
+
+foo:
+  bar: baz
+  <<: *anchor1
+  <<: *anchor2
+
+`;
+
+exports[`merge-twice.yml - yaml-verify 2`] = `
+.anchors:
+  - &anchor1
+    key: value
+  - &anchor2
+    another: prop
+
+foo:
+  bar: baz
+  <<: *anchor1
+  <<: *anchor2
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.anchors:
+    - &anchor1
+      key: value
+    - &anchor2
+      another: prop
+
+foo:
+    bar: baz
+    <<: *anchor1
+    <<: *anchor2
+
+`;
+
 exports[`middle-comment.yml - yaml-verify 1`] = `
 !!map # comment
 a: 123

tests/yaml_mapping/merge-twice.yml

@@ -0,0 +1,10 @@
+.anchors:
+  - &anchor1
+    key: value
+  - &anchor2
+    another: prop
+
+foo:
+  bar: baz
+  <<: *anchor1
+  <<: *anchor2

yarn.lock

@@ -6086,16 +6086,16 @@ yallist@^3.0.0, yallist@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
 
-yaml-unist-parser@1.0.0-rc.3:
+yaml-unist-parser@ikatyang/yaml-unist-parser#cd4f73325b3fc02a6d17842d0d9cee0dfc729c9b:
   version "1.0.0-rc.3"
-  resolved "https://registry.yarnpkg.com/yaml-unist-parser/-/yaml-unist-parser-1.0.0-rc.3.tgz#d7b396353da92c75bb471a9e65973ba967e0b4f6"
+  resolved "https://codeload.github.com/ikatyang/yaml-unist-parser/tar.gz/cd4f73325b3fc02a6d17842d0d9cee0dfc729c9b"
   dependencies:
     lines-and-columns "^1.1.6"
     tslib "^1.9.1"
 
-yaml@1.0.0-rc.7:
+yaml@ikatyang/yaml#a765c1ee16d6b8a5e715564645f2b85f7e04828b:
   version "1.0.0-rc.7"
-  resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.0.0-rc.7.tgz#7cf9dba3c78992542b7a2d7cb9a7eeacbff63f77"
+  resolved "https://codeload.github.com/ikatyang/yaml/tar.gz/a765c1ee16d6b8a5e715564645f2b85f7e04828b"
 
 yargs-parser@^7.0.0:
   version "7.0.0"