Change the MemoryBuffer::getFile* methods to take just a pointer to the
start of a filename, not a filename+length.  All clients can produce a
null terminated name, and the system api's require null terminated 
strings anyway.

llvm-svn: 49041
diff --git a/llvm/lib/Support/FileUtilities.cpp b/llvm/lib/Support/FileUtilities.cpp
index a765643..3340e8b 100644
--- a/llvm/lib/Support/FileUtilities.cpp
+++ b/llvm/lib/Support/FileUtilities.cpp
@@ -189,10 +189,8 @@
 
   // Now its safe to mmap the files into memory becasue both files
   // have a non-zero size.
-  OwningPtr<MemoryBuffer> F1(MemoryBuffer::getFile(FileA.c_str(), FileA.size(),
-                                                   Error));
-  OwningPtr<MemoryBuffer> F2(MemoryBuffer::getFile(FileB.c_str(), FileB.size(),
-                                                   Error));
+  OwningPtr<MemoryBuffer> F1(MemoryBuffer::getFile(FileA.c_str(), Error));
+  OwningPtr<MemoryBuffer> F2(MemoryBuffer::getFile(FileB.c_str(), Error));
   if (F1 == 0 || F2 == 0)
     return 2;