gn: handle continued suffix comments

tools/gn/tokenizer_unittest.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "tools/gn/input_file.h"
 #include "tools/gn/token.h"
 #include "tools/gn/tokenizer.h"
 
 namespace {
@@ skipping 154 matching lines @@
 
 TEST(Tokenizer, Comments) {
   TokenExpectation fn[] = {
     { Token::LINE_COMMENT, "# Stuff" },
     { Token::IDENTIFIER, "fun" },
     { Token::LEFT_PAREN, "(" },
     { Token::STRING, "\"foo\"" },
     { Token::RIGHT_PAREN, ")" },
     { Token::LEFT_BRACE, "{" },
     { Token::SUFFIX_COMMENT, "# Things" },
-    { Token::LINE_COMMENT, "#Wee" },
+    { Token::SUFFIX_COMMENT, "#Wee" },
     { Token::IDENTIFIER, "foo" },
     { Token::EQUAL, "=" },
     { Token::INTEGER, "12" },
     { Token::SUFFIX_COMMENT, "#Zip" },
     { Token::RIGHT_BRACE, "}" },
   };
   EXPECT_TRUE(CheckTokenizer(
-      "# Stuff\nfun(\"foo\") {  # Things\n#Wee\nfoo = 12 #Zip\n}", fn));
+      "# Stuff\n"
+      "fun(\"foo\") {  # Things\n"
+      "#Wee\n"
+      "foo = 12 #Zip\n"
+      "}",
+      fn));
 }