CPUProfiler: Improve line numbers support in profiler.

test/cctest/test-api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 12712 matching lines @@
   static size_t kPreambleLen = sizeof(kPreamble) - 1;
 
   if (event->name.len < sizeof(kPreamble) - 1 ||
       strncmp(kPreamble, event->name.str, kPreambleLen) != 0) {
     return false;
   }
 
   const char* tail = event->name.str + kPreambleLen;
   size_t tail_len = event->name.len - kPreambleLen;
   size_t expected_len = strlen(expected);
-  if (tail_len == expected_len + 1) {
-    if (*tail == '*' || *tail == '~') {
-      --tail_len;
-      ++tail;
-    } else {
-      return false;
-    }
+  if (tail_len > 1 && (*tail == '*' || *tail == '~')) {
+    --tail_len;
+    ++tail;
+  }
+
+  // Check for tails like 'bar :1'.
+  if (tail_len > expected_len + 2 &&
+      tail[expected_len] == ' ' &&
+      tail[expected_len + 1] == ':' &&
+      tail[expected_len + 2] &&
+      !strncmp(tail, expected, expected_len)) {
+    return true;
   }
 
   if (tail_len != expected_len)
     return false;
 
   return strncmp(tail, expected, expected_len) == 0;
 }
 
 
 static void event_handler(const v8::JitCodeEvent* event) {
@@ skipping 6944 matching lines @@
   i::Semaphore* sem_;
   volatile int sem_value_;
 };
 
 
 THREADED_TEST(SemaphoreInterruption) {
   ThreadInterruptTest().RunTest();
 }
 
 #endif  // WIN32