Respect the rest of the analysis-based options (issue 27868)

pkg/analyzer/lib/src/task/options.dart

Index: pkg/analyzer/lib/src/task/options.dart
diff --git a/pkg/analyzer/lib/src/task/options.dart b/pkg/analyzer/lib/src/task/options.dart
index dafb6d87d80bcee8a1d2f9892e59c4efbea7cfa8..5dfe1dc5d088e2926c5584cbd06086fef59ba46f 100644
--- a/pkg/analyzer/lib/src/task/options.dart
+++ b/pkg/analyzer/lib/src/task/options.dart
@@ -501,9 +501,17 @@ class _OptionsProcessor {
       var strongMode = analyzer[AnalyzerOptions.strong_mode];
       _applyStrongOptions(options, strongMode);
 
+      // Set filters.
+      var filters = analyzer[AnalyzerOptions.errors];
+      _applyProcessors(options, filters);
+
       // Process language options.
       var language = analyzer[AnalyzerOptions.language];
       _applyLanguageOptions(options, language);
+
+      // Process excludes.
+      var excludes = analyzer[AnalyzerOptions.exclude];
+      _applyExcludes(options, excludes);
     }
   }
 
@@ -612,6 +620,15 @@ class _OptionsProcessor {
     }
   }
 
+  void _applyExcludes(AnalysisOptionsImpl options, Object excludes) {
+    if (excludes is YamlList) {
+      List<String> excludeList = toStringList(excludes);
+      if (excludeList != null) {
+        options.excludePatterns = excludeList;
+      }
+    }
+  }
+
   void _applyLanguageOption(
       AnalysisOptionsImpl options, Object feature, Object value) {
     bool boolValue = toBool(value);
@@ -640,6 +657,11 @@ class _OptionsProcessor {
     }
   }
 
+  void _applyProcessors(AnalysisOptionsImpl options, Object codes) {
+    ErrorConfig config = new ErrorConfig(codes);
+    options.errorProcessors = config.processors;
+  }
+
   void _applyStrongModeOption(
       AnalysisOptionsImpl options, Object feature, Object value) {
     bool boolValue = toBool(value);