Provide LINE_INFO using just UnlinkedUnit even though the full info is not available.

pkg/analyzer/lib/src/summary/package_bundle_reader.dart

Index: pkg/analyzer/lib/src/summary/package_bundle_reader.dart
diff --git a/pkg/analyzer/lib/src/summary/package_bundle_reader.dart b/pkg/analyzer/lib/src/summary/package_bundle_reader.dart
index c60f8ba6ca024cde45bbd0993ba8746a38de4248..23645da1d89ae9620ec7da0ab37b2d135aaa4d67 100644
--- a/pkg/analyzer/lib/src/summary/package_bundle_reader.dart
+++ b/pkg/analyzer/lib/src/summary/package_bundle_reader.dart
@@ -174,6 +174,23 @@ abstract class ResynthesizerResultProvider extends ResultProvider {
       return true;
     }
     AnalysisTarget target = entry.target;
+
+    // LINE_INFO can be provided using just the UnlinkedUnit.
+    if (target is Source && result == LINE_INFO) {
+      String uriString = target.uri.toString();
+      UnlinkedUnit unlinkedUnit = _dataStore.unlinkedMap[uriString];
+      if (unlinkedUnit != null) {
+        List<int> lineStarts = unlinkedUnit.lineStarts;
+        if (lineStarts.isNotEmpty) {
+          LineInfo lineInfo = new LineInfo(lineStarts);
+          entry.setValue(result as ResultDescriptor<LineInfo>, lineInfo,
+              TargetedResult.EMPTY_LIST);
+          return true;
+        }
+      }
+      return false;
+    }
+
     // Check whether there are results for the source.
     if (!hasResultsForSource(target.librarySource ?? target.source)) {
       return false;
@@ -239,16 +256,6 @@ abstract class ResynthesizerResultProvider extends ResultProvider {
           return true;
         }
         return false;
-      } else if (result == LINE_INFO) {
-        UnlinkedUnit unlinkedUnit = _dataStore.unlinkedMap[uriString];
-        List<int> lineStarts = unlinkedUnit.lineStarts;
-        if (lineStarts.isNotEmpty) {
-          LineInfo lineInfo = new LineInfo(lineStarts);
-          entry.setValue(result as ResultDescriptor<LineInfo>, lineInfo,
-              TargetedResult.EMPTY_LIST);
-          return true;
-        }
-        return false;
       }
     } else if (target is LibrarySpecificUnit) {
       if (result == CREATED_RESOLVED_UNIT1 ||