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Author SHA1 Message Date
Mehdi Amini b53b62eb69 Fix autoupgrade logic for Objective-C class properties module flag 
Previous we were issuing an error when linking a module containing
the new Objective-C metadata structure for class properties with an
"old" one.
Now instead we downgrade the module flag so that the Objective-C
runtime does not expect the new metadata structure.

This is consistent with what ld64 is doing on binary files.

Differential Revision: https://reviews.llvm.org/D24620

llvm-svn: 281685
 2016-09-16 00:38:18 +00:00
Manman Ren b5d7ff4fa3 Objective-C Class Properties: Autoupgrade "Class Properties" module flag. 
When we have "Image Info Version" module flag but don't have "Class Properties"
module flag, set "Class Properties" module flag to 0, so we can correctly emit
errors when one module has the flag set and another module does not.

rdar://26469641

llvm-svn: 270791
 2016-05-25 23:14:48 +00:00