[PATCH] D51003: Allow demangler's node allocator to fail, and bail out of the entire demangling process when it does. Use this to support a "lookup" query for the mangling canonicalizer that does not create new nodes.

[Richard Smith - zygoloid via Phabricator via llvm-commits]

rsmith created this revision.
rsmith added a reviewer: erik.pilkington.
Herald added a subscriber: llvm-commits.

This could also be used to implement demangling with a fixed-size
temporary storage buffer.

Depends on https://reviews.llvm.org/D50935


Repository:
  rL LLVM

https://reviews.llvm.org/D51003

Files:
  include/llvm/Demangle/ItaniumDemangle.h
  include/llvm/Support/ItaniumManglingCanonicalizer.h
  lib/Support/ItaniumManglingCanonicalizer.cpp
  unittests/Support/ItaniumManglingCanonicalizerTest.cpp

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