Change 'clang-test' to 'check-clang' on the hacking webpage

[acoomans]

Summary

The command to run tests was previously changed from 'clang-test' to 'check-clang'; with 'clang-test' remaining available as a legacy alias (see git-svn-id: https://reviews.llvm.org/rC159483 91177308-0d34-0410-b5e6-96231b3b80d8).

This commit changes the www documentation accordingly.

[acoomans]

Ping

[JDevlieghere]

Looks good, thanks!

PS: I don't think it hurts, but it's sufficient to add cfe-commits as a subscriber. I believe it's an automation account (so it won't be able to accept on phab) and replies via e-mail are posted under the corresponding user's account.

[acoomans]

@JDevlieghere Thanks! subscribers -> makes sense, will do

[JDevlieghere]

Hey Arnaud, let me know if you want me to commit this for you.

[DavidSpickett]

I updated this to the monorepo layout and landed it: https://github.com/llvm/llvm-project/commit/604a231881a0e8f204a6d3337bfa3e797e911e34

Given the long time this has been here and the last activity of Arnaud here I've credited them by name in the commit message as was done for their other changes.

www/hacking.html

<div id="content">
 
   <p>Clang includes a basic regression suite in the tree which can be
   run with <tt>make test</tt> from the top-level clang directory, or
   just <tt>make</tt> in the <em>test</em> sub-directory.
   <tt>make VERBOSE=1</tt> can be used to show more detail
   about what is being run.</p>
 
   <p>If you built LLVM and Clang using CMake, the test suite can be run
-  with <tt>make clang-test</tt> from the top-level LLVM directory.</p>
+  with <tt>make check-clang</tt> from the top-level LLVM directory.</p>
 
   <p>The tests primarily consist of a test runner script running the compiler
   under test on individual test files grouped in the directories under the
   test directory.  The individual test files include comments at the
   beginning indicating the Clang compile options to use, to be read
   by the test runner. Embedded comments also can do things like telling
   the test runner that an error is expected at the current line.
   Any output files produced by the test will be placed under
</pre>
   Get them from <a href="http://getgnuwin32.sourceforge.net/">
   http://getgnuwin32.sourceforge.net/</a>.
   If the environment variable <tt>%PATH%</tt> does not have GnuWin32,
   or if other grep(s) supercedes GnuWin32 on <tt>%PATH%,</tt>
   you should specify <tt>LLVM_LIT_TOOLS_DIR</tt>
   to CMake explicitly.</p>
 
   <p>The cmake build tool is set up to create Visual Studio project files
-  for running the tests, "clang-test" being the root.  Therefore, to
-  run the test from Visual Studio, right-click the clang-test project
+  for running the tests, "check-clang" being the root.  Therefore, to
+  run the test from Visual Studio, right-click the check-clang project
   and select "Build".</p>
 
   <p>
     Please see also
     <a href="http://llvm.org/docs/GettingStartedVS.html">Getting Started
     with the LLVM System using Microsoft Visual Studio</a> and
     <a href="http://llvm.org/docs/CMake.html">Building LLVM with CMake</a>.
   </p>