bug #1535 fixed negative number lexing (fabpot)

This PR was merged into the 1.16-dev branch.

Discussion
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fixed negative number lexing

Fixes #1368 and #1322.

I don't see it breaking BC as relying on the current way seems weird to me.

Commits
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bf541bf fixed negative number lexing

diff --cc CHANGELOG
index 01a6a60,d41ea1d..d751363
--- 1/CHANGELOG
--- 2/CHANGELOG
+++ b/CHANGELOG
@@@ -1,6 -1,6 +1,7 @@@
  * 1.16.2 (2014-XX-XX)
  
+  * fixed lexing of negative numbers
 + * fixed 2-words test names when a custom node class is not used
   * fixed macros when using an argument named like a PHP super global (like GET or POST)
   * fixed date_modify when working with DateTimeImmutable
   * optimized for loops