esan: fix shadow setup
esan: fix shadow setup

r337531 changed return type of MmapFixedNoReserve, but esan wasn't updated.
As the result esan shadow setup always fails.
We probably need to make MmapFixedNoAccess signature consistent
with MmapFixedNoReserve. But this is just to unbreak tests.
 


git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@337550 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt