Rename DwarfAcceleratorTable to AppleAcceleratorTable. NFC

This frees up the first name to be used as an base class for the
apple table and the dwarf5 .debug_names accel table. The rename  was
split off from D42297 (adding of debug_names support), which is still
under review.

llvm-svn: 323113
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp b/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp
index 6a6b7fc..ac30f74 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp
@@ -21,7 +21,7 @@
 
 using namespace llvm;
 
-llvm::Error DWARFAcceleratorTable::extract() {
+llvm::Error AppleAcceleratorTable::extract() {
   uint32_t Offset = 0;
 
   // Check that we can at least read the header.
@@ -59,20 +59,20 @@
   return Error::success();
 }
 
-uint32_t DWARFAcceleratorTable::getNumBuckets() { return Hdr.NumBuckets; }
-uint32_t DWARFAcceleratorTable::getNumHashes() { return Hdr.NumHashes; }
-uint32_t DWARFAcceleratorTable::getSizeHdr() { return sizeof(Hdr); }
-uint32_t DWARFAcceleratorTable::getHeaderDataLength() {
+uint32_t AppleAcceleratorTable::getNumBuckets() { return Hdr.NumBuckets; }
+uint32_t AppleAcceleratorTable::getNumHashes() { return Hdr.NumHashes; }
+uint32_t AppleAcceleratorTable::getSizeHdr() { return sizeof(Hdr); }
+uint32_t AppleAcceleratorTable::getHeaderDataLength() {
   return Hdr.HeaderDataLength;
 }
 
-ArrayRef<std::pair<DWARFAcceleratorTable::HeaderData::AtomType,
-                   DWARFAcceleratorTable::HeaderData::Form>>
-DWARFAcceleratorTable::getAtomsDesc() {
+ArrayRef<std::pair<AppleAcceleratorTable::HeaderData::AtomType,
+                   AppleAcceleratorTable::HeaderData::Form>>
+AppleAcceleratorTable::getAtomsDesc() {
   return HdrData.Atoms;
 }
 
-bool DWARFAcceleratorTable::validateForms() {
+bool AppleAcceleratorTable::validateForms() {
   for (auto Atom : getAtomsDesc()) {
     DWARFFormValue FormValue(Atom.second);
     switch (Atom.first) {
@@ -92,7 +92,7 @@
 }
 
 std::pair<uint32_t, dwarf::Tag>
-DWARFAcceleratorTable::readAtoms(uint32_t &HashDataOffset) {
+AppleAcceleratorTable::readAtoms(uint32_t &HashDataOffset) {
   uint32_t DieOffset = dwarf::DW_INVALID_OFFSET;
   dwarf::Tag DieTag = dwarf::DW_TAG_null;
   DWARFFormParams FormParams = {Hdr.Version, 0, dwarf::DwarfFormat::DWARF32};
@@ -114,7 +114,7 @@
   return {DieOffset, DieTag};
 }
 
-LLVM_DUMP_METHOD void DWARFAcceleratorTable::dump(raw_ostream &OS) const {
+LLVM_DUMP_METHOD void AppleAcceleratorTable::dump(raw_ostream &OS) const {
   if (!IsValid)
     return;
 
@@ -201,8 +201,8 @@
   }
 }
 
-DWARFAcceleratorTable::ValueIterator::ValueIterator(
-    const DWARFAcceleratorTable &AccelTable, unsigned Offset)
+AppleAcceleratorTable::ValueIterator::ValueIterator(
+    const AppleAcceleratorTable &AccelTable, unsigned Offset)
     : AccelTable(&AccelTable), DataOffset(Offset) {
   if (!AccelTable.AccelSection.isValidOffsetForDataOfSize(DataOffset, 4))
     return;
@@ -215,7 +215,7 @@
   Next();
 }
 
-void DWARFAcceleratorTable::ValueIterator::Next() {
+void AppleAcceleratorTable::ValueIterator::Next() {
   assert(NumData > 0 && "attempted to increment iterator past the end");
   auto &AccelSection = AccelTable->AccelSection;
   if (Data >= NumData ||
@@ -230,8 +230,8 @@
   ++Data;
 }
 
-iterator_range<DWARFAcceleratorTable::ValueIterator>
-DWARFAcceleratorTable::equal_range(StringRef Key) const {
+iterator_range<AppleAcceleratorTable::ValueIterator>
+AppleAcceleratorTable::equal_range(StringRef Key) const {
   if (!IsValid)
     return make_range(ValueIterator(), ValueIterator());