Adding support for MSVC #pragma detect_mismatch functionality by emitting a FAILIFMISMATCH linker command into the object file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183178 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenAction.cpp b/lib/CodeGen/CodeGenAction.cpp
index 9570076..804af31 100644
--- a/lib/CodeGen/CodeGenAction.cpp
+++ b/lib/CodeGen/CodeGenAction.cpp
@@ -183,6 +183,11 @@
       Gen->HandleLinkerOptionPragma(Opts);
     }
 
+    virtual void HandleDetectMismatch(llvm::StringRef Name,
+                                      llvm::StringRef Value) {
+      Gen->HandleDetectMismatch(Name, Value);
+    }
+
     virtual void HandleDependentLibrary(llvm::StringRef Opts) {
       Gen->HandleDependentLibrary(Opts);
     }