C++: Accept tests

Author: MathiasVP

cpp/ql/test/library-tests/dataflow/taint-tests/localTaint.expected

@@ -600,3 +600,4 @@
 | taint.cpp:483:12:483:15 | line | taint.cpp:483:11:483:15 | & ... |  |
 | taint.cpp:483:18:483:19 | ref arg & ... | taint.cpp:483:19:483:19 | n [inner post update] |  |
 | taint.cpp:483:19:483:19 | n | taint.cpp:483:18:483:19 | & ... |  |
+| taint.cpp:483:28:483:34 | source1 | taint.cpp:483:11:483:15 | ref arg & ... | TAINT |

cpp/ql/test/library-tests/dataflow/taint-tests/taint.expected

@@ -67,3 +67,4 @@
 | taint.cpp:465:7:465:7 | x | taint.cpp:462:6:462:11 | call to source |
 | taint.cpp:470:7:470:7 | x | taint.cpp:462:6:462:11 | call to source |
 | taint.cpp:471:7:471:7 | y | taint.cpp:462:6:462:11 | call to source |
+| taint.cpp:485:7:485:10 | line | taint.cpp:480:26:480:32 | source1 |

cpp/ql/test/library-tests/dataflow/taint-tests/test_ir.expected

@@ -28,3 +28,4 @@
 | taint.cpp:430:9:430:14 | member | taint.cpp:428:13:428:18 | call to source |
 | taint.cpp:465:7:465:7 | x | taint.cpp:462:6:462:11 | call to source |
 | taint.cpp:470:7:470:7 | x | taint.cpp:462:6:462:11 | call to source |
+| taint.cpp:485:7:485:10 | line | taint.cpp:480:26:480:32 | source1 |