boot.js: update list of reserved JS keywords

js/boot.js

@@ -97,11 +97,19 @@ function Smalltalk(){
 	/* List of all reserved words in JavaScript. They may not be used as variables
 	   in Smalltalk. */
 
-	st.reservedWords = ['break', 'case', 'catch', 'char', 'class', 'continue', 'debugger', 
-		'default', 'delete', 'do', 'else', 'finally', 'for', 'function', 
-		'if', 'in', 'instanceof', 'new', 'private', 'protected', 
-		'public', 'return', 'static', 'switch', 'this', 'throw',
-		'try', 'typeof', 'var', 'void', 'while', 'with', 'yield'];
+	// list of reserved JavaScript keywords as of
+	//   http://es5.github.com/#x7.6.1.1
+	// and
+	//   http://people.mozilla.org/~jorendorff/es6-draft.html#sec-7.6.1
+	st.reservedWords = ['break', 'case', 'catch', 'continue', 'debugger',
+		'default', 'delete', 'do', 'else', 'finally', 'for', 'function',
+		'if', 'in', 'instanceof', 'new', 'return', 'switch', 'this', 'throw',
+		'try', 'typeof', 'var', 'void', 'while', 'with',
+		// ES5: future use: http://es5.github.com/#x7.6.1.2
+		'class', 'const', 'enum', 'export', 'extends', 'import', 'super',
+		// ES5: future use in strict mode
+		'implements', 'interface', 'let', 'package', 'private', 'protected',
+		'public', 'static', 'yield'];
 
 	/* The symbol table ensures symbol unicity */