fix crash on Properties block in Export itemv1.2.1

The merged Export item was lacking a file context.
Added a QBS_CHECK in instantiateModule to ensure a valid file context
of the module instance scope.

Task-number: QBS-550
Change-Id: I04368ba2e290a9af70f22e9c4c07324e295da4f0
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/auto/blackbox/testdata/exportSimple/project.qbs b/tests/auto/blackbox/testdata/exportSimple/project.qbs
index 1b665b880..96244671a 100644
--- a/tests/auto/blackbox/testdata/exportSimple/project.qbs
+++ b/tests/auto/blackbox/testdata/exportSimple/project.qbs
@@ -19,6 +19,10 @@ Project {
         }
         Export {
             Depends { name: 'dummy2' }
+            Properties {    // QBS-550
+                condition: false
+                qbs.optimization: "ludicrous speed"
+            }
         }
     }