move fastcall/stdcall mangling up into Mangler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98384 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAsmInfoCOFF.cpp b/lib/MC/MCAsmInfoCOFF.cpp
index 9130493..5170206 100644
--- a/lib/MC/MCAsmInfoCOFF.cpp
+++ b/lib/MC/MCAsmInfoCOFF.cpp
@@ -35,4 +35,5 @@
   AbsoluteEHSectionOffsets = false;
   SupportsDebugInformation = true;
   DwarfSectionOffsetDirective = "\t.secrel32\t";
+  HasMicrosoftFastStdCallMangling = true;
 }