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rather than waiting until it's queried.
Currently this is only applied to local submodule visibility mode, as we don't
yet allocate storage for the owning module in non-local-visibility modules
compilations.
This reinstates r302965, reverted in r303037, with a fix for the reported
crash, which occurred when reparenting a local declaration to be a child of
a hidden imported declaration (specifically during template instantiation).
llvm-svn: 303224
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update the identifier in case we've imported a definition of the macro (and
thus the contents of the header) from a module.
Also fold ExternalIdentifierLookup into ExternalPreprocessorSource; it no longer
makes sense to keep these separate now that the only user of the former also
needs the latter.
llvm-svn: 241137
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local submodule visibility enabled; that top-level file might not actually be
the module includes buffer if use of prebuilt modules is disabled.
llvm-svn: 241120
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visibility is enabled) or leave and re-enter it, restore the macro and module
visibility state from last time we were in that submodule.
This allows mutually-#including header files to stand a chance at being
modularized with local visibility enabled.
llvm-svn: 237871
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With this change, enabling -fmodules-local-submodule-visibility results in name
visibility rules being applied to submodules of the current module in addition
to imported modules (that is, names no longer "leak" between submodules of the
same top-level module). This also makes it much safer to textually include a
non-modular library into a module: each submodule that textually includes that
library will get its own "copy" of that library, and so the library becomes
visible no matter which including submodule you import.
llvm-svn: 237473
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