There is not much that I can do about it, the line numbers that the engine reports here totally make no sense. I simplified the code to:

1 <?php
2 function doSomething( $foo ) { echo $foo, "\n"; }
3
4 doSomething (
5 ( false
6 ? 42
7 : 43
8 )
9 );
10 ?>

The generated opcodes are:

line # op fetch ext return operands

2 0 EXT_STMT
1 NOP
4 2 EXT_STMT
3 EXT_FCALL_BEGIN
6 4 JMPZ false, ->7
7 5 QM_ASSIGN ~0 42
6 JMP ->8
8 7 QM_ASSIGN ~0 43
9 8 SEND_VAL ~0
9 DO_FCALL 1 'dosomething'
10 EXT_FCALL_END
11 11 EXT_STMT
12 RETURN 1
13* ZEND_HANDLE_EXCEPTION

As you can see, the assignments (op 5 and 7) are done on the line after the actual "assignment" (7 and 8 instead of 6 and 7).