rename test

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71024 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Misc/caret-diags.c b/test/Misc/caret-diags-scratch-buffer.c
similarity index 100%
rename from test/Misc/caret-diags.c
rename to test/Misc/caret-diags-scratch-buffer.c