Update Flow to 0.37.0 (#8608)

Nothing really changes.

.flowconfig

@@ -35,4 +35,4 @@ suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
 suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
 
 [version]
-^0.36.0
+^0.37.0

package.json

@@ -49,7 +49,7 @@
     "eslint-plugin-react-internal": "file:eslint-rules",
     "fbjs": "^0.8.5",
     "fbjs-scripts": "^0.6.0",
-    "flow-bin": "^0.36.0",
+    "flow-bin": "^0.37.0",
     "glob": "^6.0.1",
     "grunt": "^0.4.5",
     "grunt-cli": "^0.1.13",

yarn.lock

@@ -2200,9 +2200,9 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
-flow-bin@^0.36.0:
-  version "0.36.0"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.36.0.tgz#557907bd9c2ab0670cfad9e7e906a74b0631e39a"
+flow-bin@^0.37.0:
+  version "0.37.1"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.37.1.tgz#ddc3314d18c268ef79efabf14c22870dce4595b3"
 
 for-in@^0.1.5:
   version "0.1.6"