Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.

llvm-svn: 216525
diff --git a/llvm/lib/Support/MD5.cpp b/llvm/lib/Support/MD5.cpp
index 514466c..7aaf9a2 100644
--- a/llvm/lib/Support/MD5.cpp
+++ b/llvm/lib/Support/MD5.cpp
@@ -208,11 +208,11 @@
     memcpy(&buffer[used], Ptr, free);
     Ptr = Ptr + free;
     Size -= free;
-    body(ArrayRef<uint8_t>(buffer, 64));
+    body(makeArrayRef(buffer, 64));
   }
 
   if (Size >= 64) {
-    Ptr = body(ArrayRef<uint8_t>(Ptr, Size & ~(unsigned long) 0x3f));
+    Ptr = body(makeArrayRef(Ptr, Size & ~(unsigned long) 0x3f));
     Size &= 0x3f;
   }
 
@@ -240,7 +240,7 @@
 
   if (free < 8) {
     memset(&buffer[used], 0, free);
-    body(ArrayRef<uint8_t>(buffer, 64));
+    body(makeArrayRef(buffer, 64));
     used = 0;
     free = 64;
   }
@@ -257,7 +257,7 @@
   buffer[62] = hi >> 16;
   buffer[63] = hi >> 24;
 
-  body(ArrayRef<uint8_t>(buffer, 64));
+  body(makeArrayRef(buffer, 64));
 
   result[0] = a;
   result[1] = a >> 8;
diff --git a/llvm/lib/Support/StringRef.cpp b/llvm/lib/Support/StringRef.cpp
index 0da9d5f..ddece08 100644
--- a/llvm/lib/Support/StringRef.cpp
+++ b/llvm/lib/Support/StringRef.cpp
@@ -105,8 +105,8 @@
                                   bool AllowReplacements,
                                   unsigned MaxEditDistance) const {
   return llvm::ComputeEditDistance(
-      llvm::ArrayRef<char>(data(), size()),
-      llvm::ArrayRef<char>(Other.data(), Other.size()),
+      makeArrayRef(data(), size()),
+      makeArrayRef(Other.data(), Other.size()),
       AllowReplacements, MaxEditDistance);
 }