Fix test with unnecessarily escaped non-quote character

Unfortunately, this breaks a couple of other tests...

package.json

@@ -19,6 +19,7 @@
     "get-stdin": "5.0.1",
     "glob": "7.1.1",
     "jest-validate": "20.0.0",
+    "jsesc": "2.5.1",
     "minimist": "1.2.0"
   },
   "devDependencies": {

src/printer.js

@@ -5,6 +5,7 @@ var comments = require("./comments");
 var FastPath = require("./fast-path");
 var util = require("./util");
 var isIdentifierName = require("esutils").keyword.isIdentifierNameES6;
+var jsesc = require('jsesc');
 
 var docBuilders = require("./doc-builders");
 var concat = docBuilders.concat;
@@ -3845,42 +3846,17 @@ function nodeStr(node, options) {
   const enclosingQuote = shouldUseAlternateQuote
     ? alternate.quote
     : preferred.quote;
+  const quoteType = enclosingQuote === '"' ? "double" : "single";
 
-  // It might sound unnecessary to use `makeString` even if `node.raw` already
+  // It might sound unnecessary to use `jsesc` even if `node.raw` already
   // is enclosed with `enclosingQuote`, but it isn't. `node.raw` could contain
-  // unnecessary escapes (such as in `"\'"`). Always using `makeString` makes
+  // unnecessary escapes (such as in `"\'"`). Always using `jsesc` makes
   // sure that we consistently output the minimum amount of escaped quotes.
-  return makeString(rawContent, enclosingQuote);
-}
-
-function makeString(rawContent, enclosingQuote) {
-  const otherQuote = enclosingQuote === '"' ? "'" : '"';
-
-  // Matches _any_ escape and unescaped quotes (both single and double).
-  const regex = /\\([\s\S])|(['"])/g;
-
-  // Escape and unescape single and double quotes as needed to be able to
-  // enclose `rawContent` with `enclosingQuote`.
-  const newContent = rawContent.replace(regex, (match, escaped, quote) => {
-    // If we matched an escape, and the escaped character is a quote of the
-    // other type than we intend to enclose the string with, there's no need for
-    // it to be escaped, so return it _without_ the backslash.
-    if (escaped === otherQuote) {
-      return escaped;
-    }
-
-    // If we matched an unescaped quote and it is of the _same_ type as we
-    // intend to enclose the string with, it must be escaped, so return it with
-    // a backslash.
-    if (quote === enclosingQuote) {
-      return "\\" + quote;
-    }
-
-    // Otherwise return the escape or unescaped quote as-is.
-    return match;
+  return jsesc(str, {
+    quotes: quoteType,
+    wrap: true,
+    minimal: true
   });
-
-  return enclosingQuote + newContent + enclosingQuote;
 }
 
 function printRegex(node) {

yarn.lock

@@ -1369,6 +1369,10 @@ jsesc@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
 
+jsesc@^2.5.1:
+  version "2.5.1"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.1.tgz#e421a2a8e20d6b0819df28908f782526b96dd1fe"
+
 json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"