This patch fixes an importer problem which occurred for macros defined
in terms of two other macros which might not have been imported before.
For example, the macro CPU_TYPE_X86_64 (defined as CPU_TYPE_X86 |
CPU_ARCH_ABI64) in Foundation wasn't imported although the importing
logic was implemented.
importMacro is now called for each of the constituents before checking
the constant value.
The test was supposed to use a CF type, but it wasn't updated
for the switch from a naming convention to an attribute. This
restores the original intent (and unfortunately slides all the
offsets).
The code goes into its own sub-tree under 'tools' but tests go under 'test',
so that running 'check-swift' will also run all the SourceKit tests.
SourceKit is disabled on non-darwin platforms.