Fix test by creating large integer differently

The test for overflow used a large integer, larger than PHP_INT_MAX.
Previously it used base_convert to create an integer 4 * PHP_INT_MAX,
but that now raises an overflow warning. We now use PHP_INT_MAX and
append a zero, giving 10 * PHP_INT_MAX.

We can't just use 4 * PHP_INT_MAX, because that is converted to a float
and represented as 3.6893488147419E+19 instead of 36893488147419104082.

Author: Sjoerd Langkemper

Zend/tests/zend_ini/zend_ini_parse_uquantity_overflow.phpt

@@ -15,8 +15,8 @@ $tests = [
     'No overflow 007' => ' -1',
     'No overflow 008' => '-1 ',
     'No overflow 009' => ' -1 ',
-    'Subject overflow 001' => base_convert(str_repeat('1', PHP_INT_SIZE*8+1), 2, 10),
-    'Subject overflow 002' => '-'.base_convert(str_repeat('1', PHP_INT_SIZE*8+1), 2, 10),
+    'Subject overflow 001' => PHP_INT_MAX.'0',
+    'Subject overflow 002' => PHP_INT_MIN.'0',
     'Subject overflow 003' => strval(PHP_INT_MIN),
     'Subject overflow 004' => '-2',
     'Subject overflow 005' => '-1K',