C++: Update code scanning suite .expected.

Author: geoffw0

cpp/ql/integration-tests/query-suite/cpp-code-scanning.qls.expected

@@ -7,6 +7,7 @@ ql/cpp/ql/src/Diagnostics/ExtractedFiles.ql
 ql/cpp/ql/src/Diagnostics/ExtractionWarnings.ql
 ql/cpp/ql/src/Diagnostics/FailedExtractorInvocations.ql
 ql/cpp/ql/src/Likely Bugs/Arithmetic/BadAdditionOverflowCheck.ql
+ql/cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql
 ql/cpp/ql/src/Likely Bugs/Arithmetic/SignedOverflowCheck.ql
 ql/cpp/ql/src/Likely Bugs/Conversion/CastArrayPointerArithmetic.ql
 ql/cpp/ql/src/Likely Bugs/Format/SnprintfOverflow.ql