[tests] Run test that uses gnu asm syntax on Posix only.

llvm-svn: 261609

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