DWARF parser: Use ArrayRef to represent form sizes and simplify DWARFDIE::extractFast() interface. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193560 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/DebugInfo/DWARFUnit.cpp b/lib/DebugInfo/DWARFUnit.cpp
index 25062cd..090d441 100644
--- a/lib/DebugInfo/DWARFUnit.cpp
+++ b/lib/DebugInfo/DWARFUnit.cpp
@@ -194,12 +194,9 @@
   uint32_t NextCUOffset = getNextUnitOffset();
   DWARFDebugInfoEntryMinimal DIE;
   uint32_t Depth = 0;
-  const uint8_t *FixedFormSizes =
-    DWARFFormValue::getFixedFormSizes(getAddressByteSize(), getVersion());
   bool IsCUDie = true;
 
-  while (Offset < NextCUOffset &&
-         DIE.extractFast(this, FixedFormSizes, &Offset)) {
+  while (Offset < NextCUOffset && DIE.extractFast(this, &Offset)) {
     if (IsCUDie) {
       if (AppendCUDie)
         Dies.push_back(DIE);