[PATCH] D30493: [change-namespace] avoid adding leading '::' when possible.

[Eric Liu via Phabricator via cfe-commits]

ioeric created this revision.

When changing namespaces, the tool adds leading "::" to references that need to
be fully-qualified, which would affect readability.

We avoid adding "::" when the symbol name does not conflict with the new
namespace name. For example, a symbol name "na::nb::X" conflicts with "ns::na"
since it would be resolved to "ns::na::nb::X" in the new namespace.


https://reviews.llvm.org/D30493

Files:
  change-namespace/ChangeNamespace.cpp
  unittests/change-namespace/ChangeNamespaceTests.cpp

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