minor #3008 Tweak an error message (fabpot)

This PR was merged into the 1.x branch.

Discussion
----------

Tweak an error message

Commits
-------

19164de7 tweaked error messages

src/TokenStream.php

@@ -97,9 +97,10 @@ class TokenStream
         $token = $this->tokens[$this->current];
         if (!$token->test($type, $value)) {
             $line = $token->getLine();
-            throw new SyntaxError(sprintf('%sUnexpected token "%s" of value "%s" ("%s" expected%s).',
+            throw new SyntaxError(sprintf('%sUnexpected token "%s"%s ("%s" expected%s).',
                 $message ? $message.'. ' : '',
-                Token::typeToEnglish($token->getType()), $token->getValue(),
+                Token::typeToEnglish($token->getType()),
+                $token->getValue() ? sprintf(' of value "%s"', $token->getValue()) : '',
                 Token::typeToEnglish($type), $value ? sprintf(' with value "%s"', $value) : ''),
                 $line,
                 $this->source

test/Twig/Tests/Fixtures/tags/macro/from_syntax_error.test

@@ -0,0 +1,8 @@
+--TEST--
+"from" tag with syntax error
+--TEMPLATE--
+{% from 'forms.twig' %}
+--DATA--
+return []
+--EXCEPTION--
+Twig\Error\SyntaxError: Unexpected token "end of statement block" ("name" expected with value "import") in "index.twig" at line 2.

test/Twig/Tests/Fixtures/tags/macro/from_with_reserved_name.test

@@ -2,7 +2,6 @@
 "from" tag with reserved name
 --TEMPLATE--
 {% from 'forms.twig' import templateName %}
---TEMPLATE(forms.twig)--
 --DATA--
 return []
 --EXCEPTION--

test/Twig/Tests/Fixtures/tags/macro/import_syntax_error.test

@@ -0,0 +1,10 @@
+--TEST--
+"import" tag with reserved name
+--TEMPLATE--
+{% import 'forms.twig' %}
+
+{{ macros.parent() }}
+--DATA--
+return []
+--EXCEPTION--
+Twig\Error\SyntaxError: Unexpected token "end of statement block" ("name" expected with value "as") in "index.twig" at line 2.

test/Twig/Tests/Fixtures/tags/macro/import_with_reserved_name.test

@@ -4,7 +4,6 @@
 {% import 'forms.twig' as macros %}
 
 {{ macros.parent() }}
---TEMPLATE(forms.twig)--
 --DATA--
 return []
 --EXCEPTION--