Moving FlowAfterFree and UseAfterFree.qll as a general purpose lib.

Author: bdrodes

cpp/ql/src/Critical/FlowAfterFree.qll …security/flowafterfree/FlowAfterFree.qllcpp/ql/src/Critical/FlowAfterFree.qll renamed to cpp/ql/lib/semmle/code/cpp/security/flowafterfree/FlowAfterFree.qll cpp/ql/src/Critical/FlowAfterFree.qll renamed to cpp/ql/lib/semmle/code/cpp/security/flowafterfree/FlowAfterFree.qll

@@ -1,3 +1,7 @@
+/**
+ * General library for finding flow from a pointer being freed to a user-specified sink
+ */
+
 import cpp
 import semmle.code.cpp.dataflow.new.DataFlow
 private import semmle.code.cpp.ir.IR

cpp/ql/src/Critical/UseAfterFree.qll …/security/flowafterfree/UseAfterFree.qllcpp/ql/src/Critical/UseAfterFree.qll renamed to cpp/ql/lib/semmle/code/cpp/security/flowafterfree/UseAfterFree.qll cpp/ql/src/Critical/UseAfterFree.qll renamed to cpp/ql/lib/semmle/code/cpp/security/flowafterfree/UseAfterFree.qll

@@ -1,5 +1,9 @@
+/**
+ * General library for tracing Use After Free vulnerabilities.
+ */
+
 import cpp
-private import FlowAfterFree
+private import semmle.code.cpp.security.flowafterfree.FlowAfterFree
 private import semmle.code.cpp.ir.IR
 
 /**

cpp/ql/src/Critical/DoubleFree.ql

@@ -13,7 +13,7 @@
 
 import cpp
 import semmle.code.cpp.dataflow.new.DataFlow
-import FlowAfterFree
+import semmle.code.cpp.security.flowafterfree.FlowAfterFree
 import DoubleFree::PathGraph
 
 /**

cpp/ql/src/Critical/UseAfterFree.ql

@@ -14,8 +14,8 @@
 import cpp
 import semmle.code.cpp.dataflow.new.DataFlow
 import semmle.code.cpp.ir.IR
-import FlowAfterFree
-import UseAfterFree
+import semmle.code.cpp.security.flowafterfree.FlowAfterFree
+import semmle.code.cpp.security.flowafterfree.UseAfterFree
 import UseAfterFreeTrace::PathGraph
 
 module UseAfterFreeParam implements FlowFromFreeParamSig {