Merge pull request #10 from mathiasbynens/id

Use ES6 identifiers

es6.js

@@ -54,10 +54,10 @@ lineSeparator:0
0;
 paragraphSeparator:0
0;
 
 // identifier names
-var $, _, \u0078, x$, x_, x\u0030, xa, x0, x0a, x0123456789,
-  qwertyuiopasdfghjklzxcvbnm, QWERTYUIOPASDFGHJKLZXCVBNM;
-// a representative sample of unicode letters and numbers
-var œ一, ǻ둘, ɤ〩, φ, fiⅷ, ユニコード, x‌‍;
+var $, _, \u0078, \u{2F9F9}, x$, x_, x\u0030, x\u{e01d5}, xa, x0, x0a,
+  x0123456789, qwertyuiopasdfghjklzxcvbnm, QWERTYUIOPASDFGHJKLZXCVBNM;
+// a representative sample of ID_Start and ID_Continue
+var 䩶, x󠇕, œ一, ǻ둘, ɤ〩, φ, fiⅷ, ユニコード, x‌‍;
 var yield; let letx; let[x] = 0; const constx = 0;
 { let x; let y = 0; const z = 0; }