Fix warnings

pkg/dev_compiler/lib/src/compiler/error_helpers.dart

Index: pkg/dev_compiler/lib/src/compiler/error_helpers.dart
diff --git a/pkg/dev_compiler/lib/src/compiler/error_helpers.dart b/pkg/dev_compiler/lib/src/compiler/error_helpers.dart
index 091ab6251575b9f3e8551f3ebd9750ddd2a0b3e4..ec730d341858c2d3aa99a3943894c3468b55998d 100644
--- a/pkg/dev_compiler/lib/src/compiler/error_helpers.dart
+++ b/pkg/dev_compiler/lib/src/compiler/error_helpers.dart
@@ -60,6 +60,8 @@ ErrorSeverity errorSeverity(AnalysisContext context, AnalysisError error) {
   // * it can return null
   // * using AnalysisError directly is now suspect, it's a correctness trap
   // * it requires an AnalysisContext
-  return ErrorProcessor.getProcessor(context, error)?.severity ??
+  return ErrorProcessor
+          .getProcessor(context.analysisOptions, error)
+          ?.severity ??
       error.errorCode.errorSeverity;
 }