Add ipch folders and debug.txt to .gitignore.

TRAC #22441

Signed-off-by: Geoff Lang
Signed-off-by: Daniel Koch
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1756 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/.gitignore b/.gitignore
index b42d004..96c5dde 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,6 @@
 *.vcxproj.user
 patches-*
 *.target.mk
+ipch
+debug.txt
+