Add .noindex to the gitignore

JDevlieghere · JDevlieghere · commit ab5471cfe22d · 2019-04-05T17:57:42.000Z
The .noindex suffix is used on macOS to prevent Spotlight from indexing
its contents. These folders contain test output from dotest.py and
should be ignored when dotest is run from the LLDB source directory.

llvm-svn: 357787
diff --git a/lldb/.gitignore b/lldb/.gitignore
@@ -26,6 +26,7 @@
 # OS X specific files.
 .DS_store
 DerivedData/
+*.noindex
 
 # Remote build configuration files.
 .remote-build.conf
