Convert timer_* to a utility class and convert tests to phpunit

Just referencing a similar/reated issue: #1893306: Put the timers_() functions into a seperate component

Not to bikeshed, but would this be a good time to replace our current timer implementation with the new Symfony Stopwatch component?

$ cd core
$ phpunit
OK (17 tests, 127 assertions)
$ cd ..
$ wget http://drupal.org/files/unit-test-timers-5.patch
$ git apply unit-test-timers-5.patch
$ cd core
$ phpunit
OK (18 tests, 139 assertions)

Updated some of the docblocks.

Not to bikeshed, but would this be a good time to replace our current timer implementation with the new Symfony Stopwatch component?

Let's make an issue for that: #1936640: Replace the Timer component with Symfony Stopwatch

+++ b/core/includes/bootstrap.incundefined
@@ -2270,16 +2227,18 @@ function _drupal_exception_handler($exception) {
+  timer_start('page');

Let's use the class already.

+++ b/core/includes/bootstrap.incundefined
@@ -2270,16 +2227,18 @@ function _drupal_exception_handler($exception) {
   // Make sure we are using the test database prefix in child Drupal sites.
   _drupal_initialize_db_test_prefix();

It seems to be that we want to setup the database prefixes as early as possible, so let's keep this before loading the classes.

Just some small doc fixes included.

Just another rerole.

#11: drupal-1935970-11.patch queued for re-testing.

#11: drupal-1935970-11.patch queued for re-testing.

Committed 291dbd5 and pushed to 8.x. Thanks!

For change notice.

Awesomeness!
Also should we create folllowups to get rid of procedural wrappers?

re-tagging.

Looks like this introduced a random test failure: #1960032: Random failure in TimerUnitTest

Change notice
http://drupal.org/node/1969828