and the nature of a declaration
This commit adds an external_source_symbol attribute to Clang. This attribute
specifies that a declaration originates from an external source and describes
the nature of that source. This attribute will be used to improve IDE features
like 'jump-to-definition' for mixed-language projects or project that use
auto-generated code.
rdar://30423368
Differential Revision: https://reviews.llvm.org/D29819
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@296649 91177308-0d34-0410-b5e6-96231b3b80d8
Alex Lorenz