Fix and test case for Mantis bug 2027

inform7/Figures/timings-diagnostics.txt

@@ -1,33 +1,37 @@
 100.0% in inform7 run
-     69.1% in compilation to Inter
-         47.9% in //Sequence::undertake_queued_tasks//
-          4.6% in //MajorNodes::pre_pass//
-          3.5% in //MajorNodes::pass_1//
-          2.4% in //RTPhrasebook::compile_entries//
+     68.1% in compilation to Inter
+         47.7% in //Sequence::undertake_queued_tasks//
+          4.5% in //MajorNodes::pre_pass//
+          3.2% in //MajorNodes::pass_1//
+          2.3% in //RTPhrasebook::compile_entries//
           1.8% in //ImperativeDefinitions::assess_all//
           1.5% in //RTKindConstructors::compile//
-          1.1% in //Sequence::lint_inter//
-          0.5% in //ImperativeDefinitions::compile_first_block//
+          1.0% in //Sequence::lint_inter//
           0.5% in //MajorNodes::pass_2//
-          0.5% in //Sequence::undertake_queued_tasks//
-          0.5% in //Sequence::undertake_queued_tasks//
           0.5% in //World::stage_V//
-          0.1% in //CompletionModule::compile//
+          0.4% in //ImperativeDefinitions::compile_first_block//
+          0.4% in //Sequence::undertake_queued_tasks//
+          0.4% in //Sequence::undertake_queued_tasks//
+          0.2% in //CompletionModule::compile//
+          0.2% in //RTKindConstructors::compile_permissions//
           0.1% in //InferenceSubjects::emit_all//
-          0.1% in //RTKindConstructors::compile_permissions//
           0.1% in //Task::make_built_in_kind_constructors//
+          0.1% in //Understand::traverse//
           0.1% in //World::stages_II_and_III//
-          2.2% not specifically accounted for
-     28.1% in running Inter pipeline
-         10.1% in step 14/15: generate inform6 -> auto.inf
-          7.3% in step 5/15: load-binary-kits
-          6.2% in step 6/15: make-synoptic-module
+          2.1% not specifically accounted for
+     29.2% in running Inter pipeline
+         10.2% in step 14/15: generate inform6 -> auto.inf
+          7.6% in step 5/15: load-binary-kits
+          6.8% in step 6/15: make-synoptic-module
           1.5% in step 9/15: make-identifiers-unique
-          0.3% in step 12/15: eliminate-redundant-operations
-          0.3% in step 4/15: compile-splats
-          0.3% in step 7/15: shorten-wiring
+          0.4% in step 12/15: eliminate-redundant-operations
+          0.4% in step 4/15: compile-splats
+          0.4% in step 7/15: shorten-wiring
           0.3% in step 8/15: detect-indirect-calls
-          0.1% in step 11/15: eliminate-redundant-labels
-          1.3% not specifically accounted for
+          0.2% in step 11/15: eliminate-redundant-labels
+          0.1% in step 10/15: reconcile-verbs
+          0.1% in step 2/15: parse-insertions
+          0.1% in step 3/15: resolve-conditional-compilation
+          0.7% not specifically accounted for
       2.2% in supervisor
       0.4% not specifically accounted for