Driver: perform the ModuleWrap job for COFF

The ModuleWrap job is responsible for wrapping the AST into the swift
module.  It was only enabled for ELF objects, but COFF needs this
operation to be performed as well.  Enable this for the COFF targets as
well.  This is needed to fix the DebugInfo AST Section verification.

Author: compnerd

lib/Driver/Driver.cpp

@@ -1946,7 +1946,8 @@ void Driver::buildActions(SmallVectorImpl<const Action *> &TopLevelActions,
 
     if (MergeModuleAction) {
       if (OI.DebugInfoLevel == IRGenDebugInfoLevel::Normal) {
-        if (TC.getTriple().getObjectFormat() == llvm::Triple::ELF) {
+        if (TC.getTriple().getObjectFormat() == llvm::Triple::ELF ||
+            TC.getTriple().getObjectFormat() == llvm::Triple::COFF) {
           auto *ModuleWrapAction =
               C.createAction<ModuleWrapJobAction>(MergeModuleAction);
           LinkAction->addInput(ModuleWrapAction);