Fix for resynthesizing invalid @functionName() annotations.

pkg/analyzer/test/src/summary/resynthesize_common.dart

Index: pkg/analyzer/test/src/summary/resynthesize_common.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_common.dart b/pkg/analyzer/test/src/summary/resynthesize_common.dart
index 00bebad3fc7f9d51928d8331093df83625ef28c7..65259ba3d616bcd42267bf82c2d2ceb0d39e4fea 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_common.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_common.dart
@@ -4065,6 +4065,10 @@ class C {
     checkLibrary('@a import "foo.dart"; const a = b;');
   }
 
+  test_metadata_invalid_classDeclaration() {
+    checkLibrary('f(_) {} @f(42) class C {}');
+  }
+
   test_metadata_libraryDirective() {
     checkLibrary('@a library L; const a = null;');
   }