Python: Highlight that import problem is not just a relative problem

Author: RasmusWL

python/ql/test/experimental/dataflow/typetracking_imports/highlight_problem.expected

@@ -3,3 +3,7 @@
 | pkg/alias_problem.py:0:0:0:0 | Module pkg.alias_problem | pkg/alias_problem.py:2:1:2:20 | GSSA Variable foo | use to normal exit |
 | pkg/alias_problem_fixed.py:0:0:0:0 | Module pkg.alias_problem_fixed | pkg/alias_problem_fixed.py:0:0:0:0 | GSSA Variable foo | no use to normal exit |
 | pkg/alias_problem_fixed.py:0:0:0:0 | Module pkg.alias_problem_fixed | pkg/alias_problem_fixed.py:3:22:3:24 | GSSA Variable foo | use to normal exit |
+| pkg/problem_absolute_import.py:0:0:0:0 | Module pkg.problem_absolute_import | pkg/problem_absolute_import.py:1:25:1:27 | GSSA Variable foo | no use to normal exit |
+| pkg/problem_absolute_import.py:0:0:0:0 | Module pkg.problem_absolute_import | pkg/problem_absolute_import.py:2:1:2:23 | GSSA Variable foo | use to normal exit |
+| pkg/works_absolute_import.py:0:0:0:0 | Module pkg.works_absolute_import | pkg/works_absolute_import.py:0:0:0:0 | GSSA Variable foo | no use to normal exit |
+| pkg/works_absolute_import.py:0:0:0:0 | Module pkg.works_absolute_import | pkg/works_absolute_import.py:2:25:2:27 | GSSA Variable foo | use to normal exit |

python/ql/test/experimental/dataflow/typetracking_imports/pkg/problem_absolute_import.py

@@ -0,0 +1,2 @@
+from pkg.foo_def import foo # $ tracked
+from pkg.other import *

python/ql/test/experimental/dataflow/typetracking_imports/pkg/use.py

@@ -31,3 +31,16 @@ def test_alias_only_direct():
     print(foo) # $ tracked
 
 test_alias_only_direct()
+
+
+def test_problem_absolute_import():
+    from pkg.problem_absolute_import import foo # $ MISSING: tracked
+    print(foo) # $ MISSING: tracked
+
+test_problem_absolute_import()
+
+def test_works_absolute_import():
+    from pkg.works_absolute_import import foo # $ tracked
+    print(foo) # $ tracked
+
+test_works_absolute_import()

python/ql/test/experimental/dataflow/typetracking_imports/pkg/works_absolute_import.py

@@ -0,0 +1,2 @@
+from pkg.other import *
+from pkg.foo_def import foo # $ tracked