Adjust documentation for git migration.

This fixes most references to the paths:
 llvm.org/svn/
 llvm.org/git/
 llvm.org/viewvc/
 github.com/llvm-mirror/
 github.com/llvm-project/
 reviews.llvm.org/diffusion/

to instead point to https://github.com/llvm/llvm-project.

This is *not* a trivial substitution, because additionally, all the
checkout instructions had to be migrated to instruct users on how to
use the monorepo layout, setting LLVM_ENABLE_PROJECTS instead of
checking out various projects into various subdirectories.

I've attempted to not change any scripts here, only documentation. The
scripts will have to be addressed separately.

Additionally, I've deleted one document which appeared to be outdated
and unneeded:
  lldb/docs/building-with-debug-llvm.txt

Differential Revision: https://reviews.llvm.org/D57330

llvm-svn: 352514

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/utils/lit/setup.py b/llvm/utils/lit/setup.py
index b27ed26..10b75e7 100644
--- a/llvm/utils/lit/setup.py
+++ b/llvm/utils/lit/setup.py
@@ -52,8 +52,8 @@ Command Guide: http://llvm.org/cmds/lit.html.
 Source
 ======
 
-The *lit* source is available as part of LLVM, in the LLVM SVN repository:
-http://llvm.org/svn/llvm-project/llvm/trunk/utils/lit.
+The *lit* source is available as part of LLVM, in the LLVM source repository:
+https://github.com/llvm/llvm-project/tree/master/llvm/utils/lit
 """,
 
     classifiers=[