Fix parsing of generic local functions (issue 25769)

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

Index: pkg/analyzer/lib/src/generated/parser.dart
diff --git a/pkg/analyzer/lib/src/generated/parser.dart b/pkg/analyzer/lib/src/generated/parser.dart
index 7a39b047f1529df3d789f1a7f3a7410b8becf33b..8e676023c7b5f33e13cb76d55d567b5fe12eadb9 100644
--- a/pkg/analyzer/lib/src/generated/parser.dart
+++ b/pkg/analyzer/lib/src/generated/parser.dart
@@ -7049,7 +7049,8 @@ class Parser {
             _peek().matchesAny([
               TokenType.OPEN_PAREN,
               TokenType.OPEN_CURLY_BRACKET,
-              TokenType.FUNCTION
+              TokenType.FUNCTION,
+              TokenType.LT
             ])) {
           return _parseFunctionDeclarationStatementAfterReturnType(
               commentAndMetadata, returnType);