tree c19b65b90e687c1f60caae8c596875a56362b699
parent 85619f5c06886435108d1afe9ea876480c639def
author Erik Pilkington <erik.pilkington@gmail.com> 1522018233 +0000
committer Erik Pilkington <erik.pilkington@gmail.com> 1522018233 +0000

[demangler] Use a back-patching scheme to resolve forward references.

Strictly in a conversion operator's type, a <template-param> refers to a
<template-arg> that is further ahead in the mangled name. Instead of
doing a second parse to resolve these, introduce a
ForwardTemplateReference Node and back-patch the referenced
<template-arg> when we're in the right context.

This is also a correctness fix, previously we would only do a second
parse if the <template-param> was out of bounds in the current set of
<template-args>. This lead to misdemangles (gasp!) when the conversion
operator was a member of a templated struct, for instance.

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@328464 91177308-0d34-0410-b5e6-96231b3b80d8