Merge branch 'PHP-7.1' into PHP-7.2

* PHP-7.1:
  Fix bug #77418 - Heap overflow in utf32be_mbc_to_code
  Add NEWS
  [ci skip] Add NEWS
  Fix more issues with encodilng length
  Fix #77270: imagecolormatch Out Of Bounds Write on Heap
  Fix bug #77380  (Global out of bounds read in xmlrpc base64 code)
  Fix bug #77371 (heap buffer overflow in mb regex functions - compile_string_node)
  Fix bug #77370 - check that we do not read past buffer end when parsing multibytes
  Fix #77269: Potential unsigned underflow in gdImageScale
  Fix bug #77247 (heap buffer overflow in phar_detect_phar_fname_ext)
  Fix bug #77242 (heap out of bounds read in xmlrpc_decode())
  Regenerate certs for openssl tests

diff --cc NEWS
index c65ac47db13a450eb3f2e04e566bdbdac898b8e5,3ecac51065b0c21936de78e71339cfa6e0018bdc..041264b173aadcf8da1eed75fc4c736cc1c523a3
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -20,15 -22,8 +20,16 @@@ PH
      expand_case_fold_string). (Stas)
    . Fixed bug #77385 (buffer overflow in fetch_token). (Stas)
    . Fixed bug #77394 (Buffer overflow in multibyte case folding - unicode). (Stas)
+   . Fixed bug #77418 (Heap overflow in utf32be_mbc_to_code). (Stas)
  
 +- MySQLnd:
 +  . Fixed bug #75684 (In mysqlnd_ext_plugin.h the plugin methods family has
 +    no external visibility). (Anatol)
 +
 +- PDO:
 +  . Fixed bug #77273 (array_walk_recursive corrupts value types leading to PDO
 +    failure). (Nikita)
 +
  - Phar:
    . Fixed bug #77247 (heap buffer overflow in phar_detect_phar_fname_ext). (Stas)
  

diff --cc ext/mbstring/oniguruma/src/utf16_be.c
Simple merge

diff --cc ext/mbstring/oniguruma/src/utf16_le.c
Simple merge

diff --cc ext/mbstring/oniguruma/src/utf32_be.c
Simple merge

diff --cc ext/mbstring/oniguruma/src/utf32_le.c
Simple merge