Python: address review comments

Author: yoff

python/ql/test/experimental/dataflow/strange-essaflow/testFlow.ql

@@ -2,7 +2,7 @@ import python
 import semmle.python.dataflow.new.DataFlow
 private import semmle.python.dataflow.new.internal.DataFlowPrivate as DataFlowPrivate
 
-/** Gets the EssaNode that holds the module imported by the fully qualified module name `name` */
+/** Gets the `CfgNode` that holds the module imported by the fully qualified module name `name`. */
 DataFlow::CfgNode module_import(string name) {
   exists(Variable var, AssignmentDefinition def, Import imp, Alias alias |
     var = def.getSourceVariable() and

python/ql/test/library-tests/frameworks/internal-ql-helpers/PoorMansFunctionResolutionTest.ql

@@ -15,8 +15,6 @@ module InlinePoorMansFunctionResolutionTest implements TestSig {
       not exists(FunctionDef def | def.getDefinedFunction() = func |
         ref.asExpr() = def.getATarget()
       ) and
-      // exclude things like `GSSA variable func`
-      exists(ref.asExpr()) and
       // exclude decorator calls (which with our extractor rewrites does reference the
       // function)
       not ref.asExpr() = func.getDefinition().(FunctionExpr).getADecoratorCall()