Finish migrating VMCore to StringRef/Twine based APIs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77051 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index dadfb9e..7a22402 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -757,8 +757,7 @@
       String.resize(MDStringLength);
       for (unsigned i = 0; i != MDStringLength; ++i)
         String[i] = Record[i];
-      Value *V = 
-        Context.getMDString(String.c_str(), MDStringLength);
+      Value *V = Context.getMDString(StringRef(String.data(), String.size()));
       ValueList.AssignValue(V, NextValueNo++);
       break;
     }