fix #26992, inference failures are now an error

pkg/analyzer/test/src/task/strong/checker_test.dart

Index: pkg/analyzer/test/src/task/strong/checker_test.dart
diff --git a/pkg/analyzer/test/src/task/strong/checker_test.dart b/pkg/analyzer/test/src/task/strong/checker_test.dart
index 3d11558a05f347ee55b3e2dc2059cb001ca97f88..aecebc6a639bb43f5541ee3de8ce86efd5dc6215 100644
--- a/pkg/analyzer/test/src/task/strong/checker_test.dart
+++ b/pkg/analyzer/test/src/task/strong/checker_test.dart
@@ -1857,16 +1857,16 @@ main() {
   x = foo/*error:EXTRA_POSITIONAL_ARGUMENTS*/('1', '2', '3');
   foo/*error:NOT_ENOUGH_REQUIRED_ARGUMENTS*/(1);
   x = foo/*error:NOT_ENOUGH_REQUIRED_ARGUMENTS*/('1');
-  x = /*info:DYNAMIC_CAST*/foo/*error:EXTRA_POSITIONAL_ARGUMENTS*/(1, 2, 3);
-  x = /*info:DYNAMIC_CAST*/foo/*error:NOT_ENOUGH_REQUIRED_ARGUMENTS*/(1);
+  x = /*error:COULD_NOT_INFER*/foo/*error:EXTRA_POSITIONAL_ARGUMENTS*/(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/1, /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/2, 3);
+  x = /*error:COULD_NOT_INFER*/foo/*error:NOT_ENOUGH_REQUIRED_ARGUMENTS*/(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/1);
 
   // named arguments
   bar(y: 1, x: 2, /*error:UNDEFINED_NAMED_PARAMETER*/z: 3);
   x = bar(/*error:UNDEFINED_NAMED_PARAMETER*/z: '1', x: '2', y: '3');
   bar(y: 1);
   x = bar(x: '1', /*error:UNDEFINED_NAMED_PARAMETER*/z: 42);
-  x = /*info:DYNAMIC_CAST*/bar(y: 1, x: 2, /*error:UNDEFINED_NAMED_PARAMETER*/z: 3);
-  x = /*info:DYNAMIC_CAST*/bar(x: 1);
+  x = /*error:COULD_NOT_INFER*/bar(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/y: 1, /*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/x: 2, /*error:UNDEFINED_NAMED_PARAMETER*/z: 3);
+  x = /*error:COULD_NOT_INFER*/bar(/*error:ARGUMENT_TYPE_NOT_ASSIGNABLE*/x: 1);
 }
 ''');
   }