Create empty package.json in e2e test (facebook#1401) (facebook#1402)

* Create empty package.json in e2e test

Create empty package.json in e2e test while installing packaged CLI to prevent installation issues.

* Use "npm init" to initialize package.json instead of just writing an empty object into it.

* Fix typo

Author: matoilic

tasks/e2e-simple.sh

@@ -152,6 +152,12 @@ mv package.json.orig package.json
 
 # Install the CLI in a temporary location
 cd "$temp_cli_path"
+
+# Initialize package.json before installing the CLI because npm will not install
+# the CLI properly in the temporary location if it is missing.
+npm init --yes
+
+# Now we can install the CLI from the local package.
 npm install "$cli_path"
 
 # Install the app in a temporary location