C++: Update test results

Author: jketema

cpp/ql/test/library-tests/templates/instantiation_directive/functions.expected

@@ -1,3 +1,5 @@
 | file://:0:0:0:0 | operator= | file://:0:0:0:0 | __va_list_tag && |
 | file://:0:0:0:0 | operator= | file://:0:0:0:0 | const __va_list_tag & |
+| test.cpp:2:6:2:6 | foo | file://:0:0:0:0 | float |
+| test.cpp:2:6:2:6 | foo | file://:0:0:0:0 | int |
 | test.cpp:2:6:2:8 | foo | test.cpp:1:19:1:19 | T |