Merge branch 'PHP-5.5'

Conflicts:
	UPGRADING
	UPGRADING.INTERNALS

diff --cc UPGRADING.INTERNALS
index 90c7a4394fd5ddef6c8c508f8e0bcb78fe7a0e34,bdc2a43ab9ce21038b54818a271b136576a314cb..e9252b73bd417016242ec9bddc7cc476c7c24606
--- 1/UPGRADING.INTERNALS
--- 2/UPGRADING.INTERNALS
+++ b/UPGRADING.INTERNALS
@@@ -3,8 -3,11 +3,7 @@@ $Id
  UPGRADE NOTES - PHP X.Y
  
  1. Internal API changes
-   a. Streams pooling API
-   b. Lowercasing and locales
 -  a. Executor changes
 -  b. Streams pooling API
 -  c. Lowercasing and locales
 -  d. zend_qsort_r
 -  e. get_current_key
++  a.
  
  2. Build system changes
    a. Unix build system changes
@@@ -15,44 -18,96 +14,6 @@@
  1. Internal API changes
  ========================
  
-       a. Streams pooling API
 -      a. Executor changes
 -
 - * extensions can't override zend_execute() any more, they should override
 -   zend_execute_ex() instead. The EG(current_execute_data) is already
 -   initialized in zend_execute_ex(), so for compatibility extensions
 -   may need to use EG(current_execute_data)->prev_execute_data instead.
 - * removed EG(arg_types_stack), EX(fbc), EX(called_scope), EX(current_object)
 - * added op_array->nested_calls. It's calculated at compile time.
 - * added EX(call_slots). It is an array to store information about syntaticaly
 -   nested calls (e.g. foo(bar())). It's preallocated together with execute_data.
 - * added EX(call) - pointer to a current calling function. Actually an
 -   element of EX(call_slots)
 - * opcodes INIT_METHOD_CALL, ZEND_INIT_STATIC_METHOD_CALL,
 -   ZEND_INIT_FCALL_BY_NAME, ZEND_INIT_NS_FCALL_BY_NAME use result.num as
 -   an index in EX(call_slots)
 - * opcode ZEND_NEW uses extended_vallue as an index in EX(call_slots)
 - * opcoes ZEND_DO_FCALL and ZEND_DO_FCALL_BY_NAME use op2.num as
 -   an index in EX(call_slots)
 - * added op_array->used_stack. It's calculated at compile time and the
 -   corresponding stack space is preallocated together with execute_data.
 -   ZEND_SEND* and ZEND_DO_FCALL* don't need to check for stack overflow
 -   anymore.
 - * Removed execute_data->Ts field. The VM temporary variables always allocated
 -   immediately before execute_data structure. Now they are accessed by offset
 -   from the execute_data base pointer (instead of execute_data->Ts). Compiler
 -   stores new offsets in op_array->opcodes[*].op?.num. You can use macros
 -   EX_TMP_VAR() and EX_TMP_VAR_NUM() to access temp_variable by offset or
 -   number. You can convert number to offset using EX_TMP_VAR_NUM(0, num) or
 -   offset to number (EX_TMP_VAR_NUM(0,0)-EX_TMP_VAR(0,offset)).
 - * Removed execute_data->CVs field. The VM compiled variables always allocated
 -   immediately after execute_data structure. Now they are accessed by offset
 -   from the execute_data base pointer (instead of execute_data->CVs). You can
 -   use macros EX_CV_NUM() to access compiled variables by number.
 -
 -      b. Streams pooling API
--
--The streams pooling API has been removed. The following functions no longer
--exist:
--
--PHPAPI int php_stream_context_get_link(php_stream_context *context,
--              const char *hostent, php_stream **stream);
--PHPAPI int php_stream_context_set_link(php_stream_context *context,
--              const char *hostent, php_stream *stream);
--PHPAPI int php_stream_context_del_link(php_stream_context *context,
--              php_stream *stream);
--
-       b. Lowercasing and locales
 -      c. Lowercasing and locales
--
--The lowercasing functions in zend_operators.c were split into those that do 
--lowercasing according to locale rules and those that do ASCII lowercasing.
--ASCII:
--
--                zend_str_tolower_copy
--                zend_str_tolower_dup
--                zend_str_tolower
--                zend_binary_strcasecmp
--                zend_binary_strncasecmp
--
--Locale-based:
--                zend_binary_strncasecmp_l
--                zend_binary_strcasecmp_l
--                zend_binary_zval_strcasecmp
--                zend_binary_zval_strncasecmp
--                string_compare_function_ex
--                string_case_compare_function
--
--Internal engine lowercasing will be using ASCII-only rules. User-facing functions,
--such as strcasecmp, will be using locale rules. 
--
--Two new functions - zend_binary_strncasecmp_l and zend_binary_strcasecmp_l - added as 
--locale-based counterparts to zend_binary_strcasecmp and zend_binary_strncasecmp.
 -
 -      d. zend_qsort_r
 -
 -Added the function zend_qsort_r():
 -
 -typedef int  (*compare_r_func_t)(const void *, const void * TSRMLS_DC, void *);
 -void zend_qsort_r(void *base, size_t nmemb, size_t siz, compare_r_func_t compare, void *arg TSRMLS_DC);
 -
 -The extra argument it has (relatively to zend_qsort()) is passed to the
 -comparison function.
 -
 -      e. get_current_key
 -
 -The signature of the get_current_key iteration handler has been changed to:
 -
 -void (*get_current_key)(zend_object_iterator *iter, zval *key TSRMLS_DC);
 -
 -The key should be written into the zval* using the ZVAL_* macros.
--
  ========================
  2. Build system changes
  ========================
@@@ -61,5 -116,5 +22,5 @@@
      - 
  
    b. Windows build system changes
--    - Drop Windows XP and 2003 support.
++    -