[COFF] Initalize ErrorHandler with CanExitEarly value
[COFF] Initalize ErrorHandler with CanExitEarly value

Previously, the COFF driver would call exit(1) from the
ErrorHandler in the case of a link error, even if
CanExitEarly=false was specified. Now it initializes
the ErrorHandler in the same way that the ELF driver does.

Patch by Andrew Kelley.

Differential Revision: https://reviews.llvm.org/D41803

git-svn-id: f6089bf0e6284f307027cef4f64114ee9ebb0424@321983 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lld,llvm-mirror/lld