Experimental parser: make lexer_shell fair.

src/lexer/lexer-shell.cc

Index: src/lexer/lexer-shell.cc
diff --git a/src/lexer/lexer-shell.cc b/src/lexer/lexer-shell.cc
index 5cc6e8b7294af2d3f03db67b21fc0b847bee1dd0..0c90926f687edfd4c46b4b719f66061fd56f0e6a 100644
--- a/src/lexer/lexer-shell.cc
+++ b/src/lexer/lexer-shell.cc
@@ -252,6 +252,12 @@ TimeDelta RunBaselineScanner(const char* fname,
     token = scanner.scanner_->Next();
     if (dump_tokens) {
       tokens->push_back(GetTokenWithLocation(scanner.scanner_, token));
+    } else if (HasLiteral(token)) {
+      if (scanner.scanner_->is_literal_ascii()) {
+        scanner.scanner_->literal_ascii_string();
+      } else {
+        scanner.scanner_->literal_utf16_string();
+      }
     }
   } while (token != Token::EOS);
   return timer.Elapsed();
@@ -279,6 +285,12 @@ TimeDelta RunExperimentalScanner(Handle<String> source,
     token = scanner.Next();
     if (dump_tokens) {
       tokens->push_back(GetTokenWithLocation(&scanner, token));
+    } else if (HasLiteral(token)) {
+      if (scanner.is_literal_ascii()) {
+        scanner.literal_ascii_string();
+      } else {
+        scanner.literal_utf16_string();
+      }
     }
   } while (token != Token::EOS);
   return timer.Elapsed();