disabling sancov tests: too many failures on different platforms.

Differential Revision: http://reviews.llvm.org/D14624

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252945 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/tools/sancov/covered_functions.test b/test/tools/sancov/covered_functions._test
similarity index 100%
rename from test/tools/sancov/covered_functions.test
rename to test/tools/sancov/covered_functions._test

diff --git a/test/tools/sancov/print.test b/test/tools/sancov/print._test
similarity index 100%
rename from test/tools/sancov/print.test
rename to test/tools/sancov/print._test