Suppress dataflow deprecation warning

In CodeQL CLI 2.14 it is not possible to include deprecation warnings in
test files because the paths are absolute, and so are not portable
between different systems. We avoid the deprecation warning for now by
copying the relevant parts of the dataflow library and removing the
deprecation warning.

This workaround can be removed when we upgrade to 2.15, as the
deprecation warning has been fixed to not use absolute paths.

Author: lcartey

c/cert/src/rules/ARR37-C/DoNotUsePointerArithmeticOnNonArrayObjectPointers.ql

@@ -13,7 +13,7 @@
 
 import cpp
 import codingstandards.c.cert
-import semmle.code.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.DataFlow
 import DataFlow::PathGraph
 
 /**

c/cert/src/rules/ARR39-C/DoNotAddOrSubtractAScaledIntegerToAPointer.ql

@@ -14,7 +14,7 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.c.Pointers
-import semmle.code.cpp.dataflow.TaintTracking
+import codingstandards.cpp.dataflow.TaintTracking
 import DataFlow::PathGraph
 
 /**

c/cert/src/rules/CON30-C/CleanUpThreadSpecificStorage.ql

@@ -15,8 +15,8 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.Concurrency
-import semmle.code.cpp.dataflow.TaintTracking
-import semmle.code.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.TaintTracking
+import codingstandards.cpp.dataflow.DataFlow
 
 class TssCreateToTssDeleteDataFlowConfiguration extends DataFlow::Configuration {
   TssCreateToTssDeleteDataFlowConfiguration() { this = "TssCreateToTssDeleteDataFlowConfiguration" }

c/cert/src/rules/CON34-C/AppropriateThreadObjectStorageDurations.ql

@@ -15,8 +15,8 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.Concurrency
-import semmle.code.cpp.dataflow.TaintTracking
-import semmle.code.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.TaintTracking
+import codingstandards.cpp.dataflow.DataFlow
 import semmle.code.cpp.commons.Alloc
 
 from C11ThreadCreateCall tcc, StackVariable sv, Expr arg, Expr acc

c/cert/src/rules/CON34-C/ThreadObjectStorageDurationsNotInitialized.ql

@@ -16,8 +16,8 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.Concurrency
-import semmle.code.cpp.dataflow.TaintTracking
-import semmle.code.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.TaintTracking
+import codingstandards.cpp.dataflow.DataFlow
 
 from TSSGetFunctionCall tsg, ThreadedFunction tf
 where

c/cert/src/rules/DCL30-C/AppropriateStorageDurationsFunctionReturn.ql

@@ -13,7 +13,7 @@
 
 import cpp
 import codingstandards.c.cert
-import semmle.code.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.DataFlow
 
 class Source extends StackVariable {
   Source() { not this instanceof Parameter }

c/cert/src/rules/ERR30-C/FunctionCallBeforeErrnoCheck.ql

@@ -14,7 +14,7 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.c.Errno
-import semmle.code.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.DataFlow
 
 /**
  * A call to an `OutOfBandErrnoSettingFunction`

c/cert/src/rules/EXP30-C/DependenceOnOrderOfFunctionArgumentsForSideEffects.ql

@@ -14,8 +14,8 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.SideEffect
-import semmle.code.cpp.dataflow.DataFlow
-import semmle.code.cpp.dataflow.TaintTracking
+import codingstandards.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.TaintTracking
 import semmle.code.cpp.valuenumbering.GlobalValueNumbering
 
 /** Holds if the function's return value is derived from the `AliasParamter` p. */

c/cert/src/rules/EXP36-C/DoNotCastPointerToMoreStrictlyAlignedPointerType.ql

@@ -14,8 +14,8 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.Alignment
-import semmle.code.cpp.dataflow.DataFlow
-import semmle.code.cpp.dataflow.DataFlow2
+import codingstandards.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.DataFlow2
 import semmle.code.cpp.rangeanalysis.SimpleRangeAnalysis
 import DataFlow::PathGraph
 

c/cert/src/rules/EXP37-C/DoNotCallFunctionPointerWithIncompatibleType.ql

@@ -13,7 +13,7 @@
 
 import cpp
 import codingstandards.c.cert
-import semmle.code.cpp.dataflow.DataFlow
+import codingstandards.cpp.dataflow.DataFlow
 import DataFlow::PathGraph
 
 /**