Python: test nice locations

there are errors both on lines 2 and 3 due to
locations being computed wrongly.

Author: yoff

python/ql/test/library-tests/locations/imports/import_statements.py

@@ -0,0 +1,4 @@
+from nova.api.openstack.placement import microversion
+from nova.api.openstack.placement.objects import resource_provider as rp_obj
+from nova.api.openstack.placement.policies import allocation_candidate as \
+    policies

python/ql/test/library-tests/locations/imports/imports.expected

@@ -0,0 +1,8 @@
+| import_statements.py | 1 | 6 | 1 | 33 |
+| import_statements.py | 1 | 42 | 1 | 53 |
+| import_statements.py | 2 | 6 | 2 | 41 |
+| import_statements.py | 2 | 60 | 2 | 76 |
+| import_statements.py | 2 | 71 | 2 | 76 |
+| import_statements.py | 3 | 6 | 3 | 42 |
+| import_statements.py | 4 | 5 | 4 | 12 |
+| import_statements.py | 4 | -7 | 4 | 12 |

python/ql/test/library-tests/locations/imports/imports.ql

@@ -0,0 +1,6 @@
+import python
+import analysis.DefinitionTracking
+
+from NiceLocationExpr expr, string f, int bl, int bc, int el, int ec
+where expr.hasLocationInfo(f, bl, bc, el, ec)
+select f, bl, bc, el, ec