Move lto-constmerge-odr.cc to Posix (it's failing on Windows).

llvm-svn: 327080

diff --git a/compiler-rt/test/asan/TestCases/lto-constmerge-odr.cc b/compiler-rt/test/asan/TestCases/Posix/lto-constmerge-odr.cc
similarity index 100%
rename from compiler-rt/test/asan/TestCases/lto-constmerge-odr.cc
rename to compiler-rt/test/asan/TestCases/Posix/lto-constmerge-odr.cc