Fix f-string test

Adrien Chauve · Adrien Chauve · commit 6c4aa78c4428 · 2016-12-30T18:54:03.000+01:00
diff --git a/test-data/unit/check-expressions.test b/test-data/unit/check-expressions.test
@@ -1163,7 +1163,8 @@ u'%s' % (u'abc',)
 
 
 [case testFStringParseOk]
-a = f'foobar'
+# flags: --fast-parser
+f'foobar'
 
 
 -- Lambdas
