Quick Fix for CAN_BE_NULL_AFTER_NULL_AWARE.

pkg/analysis_server/lib/src/services/correction/fix_internal.dart

Index: pkg/analysis_server/lib/src/services/correction/fix_internal.dart
diff --git a/pkg/analysis_server/lib/src/services/correction/fix_internal.dart b/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
index a6f30996f764cb4478efd28223f74ccd7307b9ab..0ad6b878ae190c370606d2c05608626e5fdd6b03 100644
--- a/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
+++ b/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
@@ -159,6 +159,9 @@ class FixProcessor {
       _addFix_createPartUri();
       _addFix_replaceImportUri();
     }
+    if (errorCode == HintCode.CAN_BE_NULL_AFTER_NULL_AWARE) {
+      _addFix_canBeNullAfterNullAware();
+    }
     if (errorCode == HintCode.DEAD_CODE) {
       _addFix_removeDeadCode();
     }
@@ -445,6 +448,25 @@ class FixProcessor {
     _addFix(DartFixKind.REPLACE_BOOLEAN_WITH_BOOL, []);
   }
 
+  void _addFix_canBeNullAfterNullAware() {
+    AstNode node = coveredNode;
+    if (node is Expression) {
+      AstNode parent = node.parent;
+      while (parent != null) {
+        if (parent is MethodInvocation && parent.target == node) {
+          _addReplaceEdit(rf.rangeToken(parent.operator), '?.');
+        } else if (parent is PropertyAccess && parent.target == node) {
+          _addReplaceEdit(rf.rangeToken(parent.operator), '?.');
+        } else {
+          break;
+        }
+        node = parent;
+        parent = node.parent;
+      }
+      _addFix(DartFixKind.REPLACE_WITH_NULL_AWARE, []);
+    }
+  }
+
   void _addFix_createClass() {
     Element prefixElement = null;
     String name = null;