[ASan] Rename the ASan dynamic RT

Reviewed at http://reviews.llvm.org/D5026

llvm-svn: 216380
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 805847d..fe3baa8 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -2200,7 +2200,7 @@
   if (Shared) {
     // Link dynamic runtime if necessary.
     SmallString<128> LibSanitizer =
-        getSanitizerRTLibName(TC, "asan", Shared);
+        getSanitizerRTLibName(TC, "asan_dynamic", Shared);
     CmdArgs.insert(CmdArgs.begin(), Args.MakeArgString(LibSanitizer));
   }