Improvements to execution order ambiguity reporting

Cargo.toml

@@ -339,6 +339,10 @@ name = "custom_diagnostic"
 path = "examples/diagnostics/custom_diagnostic.rs"
 
 # ECS (Entity Component System)
+[[example]]
+name = "ambiguity_checker"
+path = "examples/ecs/ambiguity_checker.rs"
+
 [[example]]
 name = "ecs_guide"
 path = "examples/ecs/ecs_guide.rs"
@@ -544,6 +548,10 @@ path = "examples/stress_tests/transform_hierarchy.rs"
 
 # Tools
 
+[[example]]
+name = "internal_ambiguities"
+path = "examples/tools/internal_ambiguities.rs"
+
 [[example]]
 name = "scene_viewer"
 path = "examples/tools/scene_viewer.rs"

crates/bevy_ecs/src/lib.rs

@@ -28,9 +28,10 @@ pub mod prelude {
         event::{EventReader, EventWriter},
         query::{Added, AnyOf, ChangeTrackers, Changed, Or, QueryState, With, Without},
         schedule::{
-            AmbiguitySetLabel, ExclusiveSystemDescriptorCoercion, ParallelSystemDescriptorCoercion,
-            RunCriteria, RunCriteriaDescriptorCoercion, RunCriteriaLabel, Schedule, Stage,
-            StageLabel, State, SystemLabel, SystemSet, SystemStage,
+            AmbiguitySetLabel, ExclusiveSystemDescriptorCoercion, ExecutionOrderAmbiguities,
+            ParallelSystemDescriptorCoercion, RunCriteria, RunCriteriaDescriptorCoercion,
+            RunCriteriaLabel, Schedule, Stage, StageLabel, State, SystemLabel, SystemSet,
+            SystemStage,
         },
         system::{
             Commands, In, IntoChainSystem, IntoExclusiveSystem, IntoSystem, Local, NonSend,