tree 0dda79ba52c176dd0865692c88490adcdaee7ac7
parent 4df5ca1e0254790d41f945352a93f5c783ea8de0
author Josh Gao <jmgao@google.com> 1491508642 -0700
committer Josh Gao <jmgao@google.com> 1491511076 -0700

versioner: fix LLVM assertion failure.

MemoryBuffer::getOpenFileSlice asserts that the map size passed in
isn't -1 (presumably because the offset can be nonzero). Switch to
getOpenFile, which results in an identical call to the implementation
function without the assert.

Bug: http://b/37002637
Test: export FORCE_BUILD_LLVM_COMPONENTS=true
      export FORCE_BUILD_LLVM_DEBUG=true
      export FORCE_BUILD_LLVM_DISABLE_NDEBUG=true
      mma -j && versioner

Change-Id: Ib610db9e07429aa3f64128eaef6ef555c4d1868e