[PATCH] D28544: Remove all DWARFDie::getAttributeAsXXX() calls that returned default values and use new llvm::OptionalDefault template instead.

[Greg Clayton via Phabricator via llvm-commits]

clayborg created this revision.
clayborg added reviewers: dblaikie, aprantl, probinson, llvm-commits.
Herald added a subscriber: jgosnell.

This removes many APIs and provides a generic way to get the result of a function that is an Optional<T> and get a default value for T that is specified if the optional doesn't have a value.


https://reviews.llvm.org/D28544

Files:
  include/llvm/ADT/Optional.h
  include/llvm/DebugInfo/DWARF/DWARFDie.h
  lib/DebugInfo/DWARF/DWARFDie.cpp
  lib/DebugInfo/DWARF/DWARFUnit.cpp
  tools/dsymutil/DwarfLinker.cpp
  unittests/DebugInfo/DWARF/DWARFDebugInfoTest.cpp

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