C++: accept test improvement from conversions

Duplicate results were due to a mishandling of implicit array-to-pointer
conversions.

Author: Robert Marsh

cpp/ql/test/query-tests/Likely Bugs/Underspecified Functions/MistypedFunctionArguments.expected

@@ -1,6 +1,4 @@
-| test.c:33:3:33:19 | call to not_yet_declared2 | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:32:3:32:3 | not_yet_declared2 | not_yet_declared2 | test.c:33:21:33:22 | ca | ca | file://:0:0:0:0 | int * | int * | test.c:76:24:76:26 | p#0 | int p#0 |
 | test.c:33:3:33:19 | call to not_yet_declared2 | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:32:3:32:3 | not_yet_declared2 | not_yet_declared2 | test.c:33:21:33:22 | ca | ca | file://:0:0:0:0 | int[4] | int[4] | test.c:76:24:76:26 | p#0 | int p#0 |
-| test.c:33:3:33:19 | call to not_yet_declared2 | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:76:6:76:22 | not_yet_declared2 | not_yet_declared2 | test.c:33:21:33:22 | ca | ca | file://:0:0:0:0 | int * | int * | test.c:76:24:76:26 | p#0 | int p#0 |
 | test.c:33:3:33:19 | call to not_yet_declared2 | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:76:6:76:22 | not_yet_declared2 | not_yet_declared2 | test.c:33:21:33:22 | ca | ca | file://:0:0:0:0 | int[4] | int[4] | test.c:76:24:76:26 | p#0 | int p#0 |
 | test.c:40:3:40:29 | call to declared_empty_defined_with | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:77:6:77:32 | declared_empty_defined_with | declared_empty_defined_with | test.c:40:31:40:32 | & ... | & ... | file://:0:0:0:0 | int * | int * | test.c:77:38:77:38 | x | int x |
 | test.c:44:3:44:27 | call to not_declared_defined_with | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:80:6:80:30 | not_declared_defined_with | not_declared_defined_with | test.c:44:29:44:31 | 4 | 4 | file://:0:0:0:0 | long long | long long | test.c:80:36:80:36 | x | int x |