Invalidate both hints and lints on incremental resolution.

pkg/analyzer/lib/src/generated/engine.dart

Index: pkg/analyzer/lib/src/generated/engine.dart
diff --git a/pkg/analyzer/lib/src/generated/engine.dart b/pkg/analyzer/lib/src/generated/engine.dart
index 7d3f7e68aadefda93a0e4cfec6b382beaab421b1..8488ab4bf4212f492e3bb29cdac15f4daebdab78 100644
--- a/pkg/analyzer/lib/src/generated/engine.dart
+++ b/pkg/analyzer/lib/src/generated/engine.dart
@@ -2222,7 +2222,7 @@ class AnalysisContextImpl implements InternalAnalysisContext {
     // Prepare sources to invalidate hints in.
     List<Source> sources = <Source>[librarySource];
     sources.addAll(dartEntry.getValue(DartEntry.INCLUDED_PARTS));
-    // Invalidate hints.
+    // Invalidate hints and lints.
     for (Source source in sources) {
       DartEntry dartEntry = _cache.get(source);
       if (dartEntry.getStateInLibrary(DartEntry.HINTS, librarySource) ==
@@ -2230,6 +2230,11 @@ class AnalysisContextImpl implements InternalAnalysisContext {
         dartEntry.setStateInLibrary(
             DartEntry.HINTS, librarySource, CacheState.INVALID);
       }
+      if (dartEntry.getStateInLibrary(DartEntry.LINTS, librarySource) ==
+          CacheState.VALID) {
+        dartEntry.setStateInLibrary(
+            DartEntry.LINTS, librarySource, CacheState.INVALID);
+      }
     }
   }