Re-land "Emit proper CodeView when -gcodeview is passed without the cl driver."
Re-land "Emit proper CodeView when -gcodeview is passed without the cl driver."

Reverts r326116 and re-lands r326113 with a fix to ASan so that it
enables column info in its test suite.

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@326141 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