Fixed bug #72213 (Finally leaks on nested exceptions).

Squashed commit of the following:

commit 8461b0407fc9eab0869d43b84e6a92ba2fe06997
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed May 25 00:34:42 2016 +0300

    Rmoved zend_try_catch_element.parent and walk through op_array.try_catch_array backward from the current try_cacth_offset.

commit 0c71e249649bed178bfbef30bb3e63c57f07af05
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed May 25 00:04:53 2016 +0300

    Move SAVE_OPLINE() to its original place

commit 111432a4df738fcd65878a42f23194dc3c4983a2
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed May 25 00:01:10 2016 +0300

    Separate the common part of ZEND_HANDLE_EXCEPTION and FAST_RET into zend_dispatch_try_catch_finally_helper.

commit 4f21c06c2ec17819a708bc037f318784554a6ecd
Author: Nikita Popov <nikic@php.net>
Date:   Tue May 24 14:55:27 2016 +0200

    Improve finally fix

commit da5c7274997b8308e682b5bf280124e3a1483086
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue May 24 10:36:08 2016 +0300

    Fixed Zend/tests/try/bug70228_3.phpt and Zend/tests/try/bug70228_4.phpt

commit cfcedf2fb4f4fc1f7de9f7d53a3037fed7795f19
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue May 24 02:59:27 2016 +0300

    Added test

commit 4c6aa93d43da941eb4fda15b48154bfb104bdc04
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue May 24 00:38:20 2016 +0300

    Added tests

commit 8a8f4704b0eca2e460d42c1f253a363b0db8e510
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon May 23 23:27:34 2016 +0300

    Fixed bug #72213 (Finally leaks on nested exceptions)

1 files changed, 0 insertions, 55 deletions

diff --git a/Zend/zend_opcode.c b/Zend/zend_opcode.c
index 34e060fa4a..0b5fe75ff8 100644
--- a/Zend/zend_opcode.c
+++ b/Zend/zend_opcode.c
@@ -534,57 +534,6 @@ static void zend_check_finally_breakout(zend_op_array *op_array, uint32_t op_num
 	}
 }
 
-static void zend_resolve_fast_call(zend_op_array *op_array, uint32_t op_num)
-{
-	int i;
-	uint32_t finally_num = (uint32_t)-1;
-
-	for (i = 0; i < op_array->last_try_catch; i++) {
-		if (op_num >= op_array->try_catch_array[i].finally_op
-				&& op_num < op_array->try_catch_array[i].finally_end) {
-			finally_num = i;
-		}
-	}
-
-	if (finally_num != (uint32_t)-1) {
-		/* Must be ZEND_FAST_CALL */
-		ZEND_ASSERT(op_array->opcodes[op_array->try_catch_array[finally_num].finally_op - 2].opcode == ZEND_FAST_CALL);
-		op_array->opcodes[op_num].extended_value = ZEND_FAST_CALL_FROM_FINALLY;
-	}
-}
-
-static void zend_resolve_finally_ret(zend_op_array *op_array, uint32_t op_num)
-{
-	int i;
-	uint32_t finally_num = (uint32_t)-1;
-	uint32_t catch_num = (uint32_t)-1;
-
-	for (i = 0; i < op_array->last_try_catch; i++) {
-		if (op_array->try_catch_array[i].try_op > op_num) {
-			break;
-		}
-		if (op_num < op_array->try_catch_array[i].finally_op) {
-			finally_num = i;
-		}
-		if (op_num < op_array->try_catch_array[i].catch_op) {
-			catch_num = i;
-		}
-	}
-
-	if (finally_num != (uint32_t)-1 &&
-	    (catch_num == (uint32_t)-1 ||
-	     op_array->try_catch_array[catch_num].catch_op >=
-	     op_array->try_catch_array[finally_num].finally_op)) {
-		/* in case of unhandled exception return to upward finally block */
-		op_array->opcodes[op_num].extended_value = ZEND_FAST_RET_TO_FINALLY;
-		op_array->opcodes[op_num].op2.num = finally_num;
-	} else if (catch_num != (uint32_t)-1) {
-		/* in case of unhandled exception return to upward catch block */
-		op_array->opcodes[op_num].extended_value = ZEND_FAST_RET_TO_CATCH;
-		op_array->opcodes[op_num].op2.num = catch_num;
-	}
-}
-
 static uint32_t zend_get_brk_cont_target(const zend_op_array *op_array, const zend_op *opline) {
 	int nest_levels = opline->op2.num;
 	int array_offset = opline->op1.num;
@@ -633,12 +582,8 @@ ZEND_API int pass_two(zend_op_array *op_array)
 		switch (opline->opcode) {
 			case ZEND_FAST_CALL:
 				opline->op1.opline_num = op_array->try_catch_array[opline->op1.num].finally_op;
-				zend_resolve_fast_call(op_array, opline - op_array->opcodes);
 				ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, opline->op1);
 				break;
-			case ZEND_FAST_RET:
-				zend_resolve_finally_ret(op_array, opline - op_array->opcodes);
-				break;
 			case ZEND_BRK:
 			case ZEND_CONT:
 				{