Visual Studio tools used on win32 hosts when targeting win32.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111748 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.h b/lib/Driver/Tools.h
index 725dd46..b5defa4 100644
--- a/lib/Driver/Tools.h
+++ b/lib/Driver/Tools.h
@@ -435,6 +435,22 @@
   };
 } // end namespace dragonfly
 
+  /// Visual studio tools.
+namespace visualstudio {
+  class LLVM_LIBRARY_VISIBILITY Link : public Tool  {
+  public:
+    Link(const ToolChain &TC) : Tool("visualstudio::Link", "linker", TC) {}
+
+    virtual bool hasIntegratedCPP() const { return false; }
+
+    virtual void ConstructJob(Compilation &C, const JobAction &JA,
+                              const InputInfo &Output,
+                              const InputInfoList &Inputs,
+                              const ArgList &TCArgs,
+                              const char *LinkingOutput) const;
+  };
+} // end namespace visualstudio
+
 } // end namespace toolchains
 } // end namespace driver
 } // end namespace clang