Convert RULE-22-4 to use the new dataflow library

Author: jketema

c/misra/src/rules/RULE-22-4/AttemptToWriteToAReadOnlyStream.ql

@@ -14,7 +14,7 @@
 import cpp
 import codingstandards.c.misra
 import codingstandards.cpp.standardlibrary.FileAccess
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 module FileDFConfig implements DataFlow::ConfigSig {
   predicate isSource(DataFlow::Node source) {

c/misra/test/rules/RULE-22-4/AttemptToWriteToAReadOnlyStream.expected

@@ -1,8 +1,2 @@
-WARNING: module 'DataFlow' has been deprecated and may be removed in future (AttemptToWriteToAReadOnlyStream.ql:19,32-40)
-WARNING: module 'DataFlow' has been deprecated and may be removed in future (AttemptToWriteToAReadOnlyStream.ql:20,22-30)
-WARNING: module 'DataFlow' has been deprecated and may be removed in future (AttemptToWriteToAReadOnlyStream.ql:25,20-28)
-WARNING: module 'DataFlow' has been deprecated and may be removed in future (AttemptToWriteToAReadOnlyStream.ql:31,21-29)
-WARNING: module 'DataFlow' has been deprecated and may be removed in future (AttemptToWriteToAReadOnlyStream.ql:33,6-14)
-WARNING: module 'DataFlow' has been deprecated and may be removed in future (AttemptToWriteToAReadOnlyStream.ql:36,28-36)
 | test.c:10:3:10:9 | call to fprintf | Attempt to write to a $@ opened as read-only. | test.c:9:14:9:18 | call to fopen | stream |
 | test.c:15:3:15:9 | call to fprintf | Attempt to write to a $@ opened as read-only. | test.c:18:14:18:18 | call to fopen | stream |