Ignore -save-temps=obj files

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55587 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

.gitignore

@@ -3,10 +3,12 @@
 *-*-*.lib
 *.a
 *.bak
+*.bc
 *.dSYM
 *.dmyh
 *.dylib
 *.elc
+*.i
 *.inc
 *.log
 *.o
@@ -14,6 +16,7 @@
 *.orig
 *.pdb
 *.rej
+*.s
 *.sav
 *.swp
 *.yarb