Use makeArrayRef or None to avoid unnecessarily mentioning the ArrayRef type extra times. NFC

llvm-svn: 248140
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp b/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp
index 53a676e..d22e635 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFFormValue.cpp
@@ -110,7 +110,7 @@
 
 bool DWARFFormValue::isFormClass(DWARFFormValue::FormClass FC) const {
   // First, check DWARF4 form classes.
-  if (Form < ArrayRef<FormClass>(DWARF4FormClasses).size() &&
+  if (Form < makeArrayRef(DWARF4FormClasses).size() &&
       DWARF4FormClasses[Form] == FC)
     return true;
   // Check more forms from DWARF4 and DWARF5 proposals.
@@ -584,6 +584,6 @@
 Optional<ArrayRef<uint8_t>> DWARFFormValue::getAsBlock() const {
   if (!isFormClass(FC_Block) && !isFormClass(FC_Exprloc))
     return None;
-  return ArrayRef<uint8_t>(Value.data, Value.uval);
+  return makeArrayRef(Value.data, Value.uval);
 }