Convert A15-1-3 to the new dataflow library

Author: jketema

cpp/autosar/src/rules/A15-1-3/ThrownExceptionsShouldBeUnique.ql

@@ -16,7 +16,7 @@
 import cpp
 import codingstandards.cpp.autosar
 import codingstandards.cpp.exceptions.ExceptionFlow
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 import semmle.code.cpp.valuenumbering.HashCons
 
 /** Find a value which defines the exception thrown by the `DirectThrowExpr`, if any. */

cpp/autosar/test/rules/A15-1-3/ThrownExceptionsShouldBeUnique.expected

@@ -1,4 +1,3 @@
-WARNING: module 'DataFlow' has been deprecated and may be removed in future (ThrownExceptionsShouldBeUnique.ql:24,3-11)
 | test.cpp:6:5:6:26 | throw ... | The $@ thrown here is a possible duplicate of the $@ thrown $@. | test.cpp:6:5:6:26 | call to exception | std::exception exception | test.cpp:14:5:14:26 | call to exception | exception | test.cpp:14:5:14:26 | throw ... | here |
 | test.cpp:8:5:8:53 | throw ... | The $@ thrown here is a possible duplicate of the $@ thrown $@. | test.cpp:8:5:8:53 | call to runtime_error | std::runtime_error exception | test.cpp:16:5:16:53 | call to runtime_error | exception | test.cpp:16:5:16:53 | throw ... | here |
 | test.cpp:14:5:14:26 | throw ... | The $@ thrown here is a possible duplicate of the $@ thrown $@. | test.cpp:14:5:14:26 | call to exception | std::exception exception | test.cpp:6:5:6:26 | call to exception | exception | test.cpp:6:5:6:26 | throw ... | here |