Update ResolvedAstPrinter._writeTokenList()

Change-Id: I4dc1b4f50b8d3f23aa1015bbcad9f2861b9b78b5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/252564
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Samuel Rawlins <srawlins@google.com>

Author: scheglov

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

@@ -15646,11 +15646,11 @@ library
           SymbolLiteral
             poundSign: # @382
             components
-              components: aaa
+              aaa
                 offset: 383
-              components: bbb
+              bbb
                 offset: 387
-              components: ccc
+              ccc
                 offset: 391
     accessors
       synthetic static get vNull @-1

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

@@ -1643,13 +1643,12 @@ class ResolvedAstPrinter extends ThrowingAstVisitor<void> {
     }
   }
 
-  /// TODO(scheglov) maybe inline?
   void _writeTokenList(String name, List<Token> tokens) {
     if (tokens.isNotEmpty) {
       _writelnWithIndent(name);
       _withIndent(() {
         for (var token in tokens) {
-          _writelnWithIndent('$name: $token');
+          _writelnWithIndent(token.lexeme);
           _withIndent(() {
             _writeOffset('offset', token.offset);
           });