Use the new dataflow module wherever possible without affecting any test behavior

- Updated various QL files to replace deprecated 'DataFlow' and 'TaintTracking' imports with 'new.DataFlow' and 'new.TaintTracking'.
- Removed warnings related to deprecated modules in test expectations for affected rules.

Author: mbaluda

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

@@ -20,7 +20,7 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.Concurrency
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 module TssCreateToTssDeleteConfig implements DataFlow::ConfigSig {
   predicate isSource(DataFlow::Node node) {

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

@@ -19,7 +19,7 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.c.Errno
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 /**
  * A call to an `OutOfBandErrnoSettingFunction`

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

@@ -18,7 +18,7 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.c.Errno
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 class SetlocaleFunctionCall extends FunctionCall {
   SetlocaleFunctionCall() { this.getTarget().hasGlobalName("setlocale") }

c/cert/src/rules/ERR32-C/DoNotRelyOnIndeterminateValuesOfErrno.ql

@@ -20,7 +20,7 @@ import codingstandards.c.cert
 import codingstandards.c.Errno
 import codingstandards.c.Signal
 import semmle.code.cpp.controlflow.Guards
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 /**
  * A check on `signal` call return value

c/cert/src/rules/ERR33-C/DetectAndHandleStandardLibraryErrors.ql

@@ -20,7 +20,7 @@ import cpp
 import codingstandards.c.cert
 import semmle.code.cpp.commons.NULL
 import codingstandards.cpp.ReadErrorsAndEOF
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 ComparisonOperation getAValidComparison(string spec) {
   spec = "=0" and result.(EqualityOperation).getAnOperand().getValue() = "0"

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

@@ -19,7 +19,7 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.SideEffect
-import semmle.code.cpp.dataflow.TaintTracking
+import semmle.code.cpp.dataflow.new.TaintTracking
 import semmle.code.cpp.valuenumbering.GlobalValueNumbering
 
 /** Holds if the function's return value is derived from the `AliasParamter` p. */

c/cert/src/rules/FIO37-C/SuccessfulFgetsOrFgetwsMayReturnAnEmptyString.ql

@@ -19,7 +19,7 @@ import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.FgetsErrorManagement
 import codingstandards.cpp.Dereferenced
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 /*
  * CFG nodes that follows a successful call to `fgets`

c/cert/src/rules/FIO40-C/ResetStringsOnFgetsOrFgetwsFailure.ql

@@ -21,7 +21,7 @@ import cpp
 import codingstandards.cpp.FgetsErrorManagement
 import codingstandards.cpp.Dereferenced
 import codingstandards.c.cert
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 
 /*
  * Models calls to `memcpy` `strcpy` `strncpy` and their wrappers

c/cert/src/rules/FIO45-C/ToctouRaceConditionsWhileAccessingFiles.ql

@@ -19,7 +19,7 @@
 import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.standardlibrary.FileAccess
-import semmle.code.cpp.dataflow.DataFlow
+import semmle.code.cpp.dataflow.new.DataFlow
 import semmle.code.cpp.valuenumbering.GlobalValueNumbering
 
 /**

c/cert/src/rules/MEM35-C/InsufficientMemoryAllocatedForObject.ql

@@ -21,7 +21,6 @@ import cpp
 import codingstandards.c.cert
 import codingstandards.cpp.Overflow
 import semmle.code.cpp.controlflow.Guards
-import semmle.code.cpp.dataflow.TaintTracking
 import semmle.code.cpp.models.Models
 
 /**