The Swift name lookup tables and the complete Objective-C "container"
to Swift DeclContext mapping code used similar-but-different logic to
determine when to suppress a declaration (e.g., when suppressing the
accessors for a property). Centralize the logic so we get the same
behavior in both places.
The base name -> full name mapping really isn't interesting; index
based on the base name and filter by context instead. This makes the
lookup table dumper less interesting for testing purposes
(unfortunately), but test coverage will improve greatly once we can
turn on these lookup tables.
Ensures that the Swift lookup tables get transformed name for imported
CF types, including original name (which is still
available). Otherwise, this is an NFC refactoring that gets the last
of the naming tricks into importFullName.
The translation from the Objective-C NSError** convention into Swift
throwing methods alters the names of methods. Move that computation
into importFullName. This should be NFC refactoring for everything
except the Swift name lookup tables, which will now correctly reflect
this name translation.
The getters and setters for Objective-C @property declarations are
never found by name lookup, so don't introduce them into the Swift
lookup tables. Note that we exclude some of the accessibility
declarations for unrelated reasons, as we do elsewhere in the
importer.
Start testing the construction of the Swift lookup tables in the Clang
importer for Objective-C entities. Fix some obvious issues, e.g.,
category and extension entries should be associated with the
corresponding class, and the categories/extensions shouldn't have
entries in the lookup table.
