Merge pull request #29584 from DougGregor/bump-top-level-var-module-version

[Serialization] Bump module format version.

Author: Catfish-Man

lib/Serialization/ModuleFormat.h

@@ -55,7 +55,7 @@ const uint16_t SWIFTMODULE_VERSION_MAJOR = 0;
 /// describe what change you made. The content of this comment isn't important;
 /// it just ensures a conflict if two people change the module format.
 /// Don't worry about adhering to the 80-column limit for this line.
-const uint16_t SWIFTMODULE_VERSION_MINOR = 534; // add SIL parameter differentiability
+const uint16_t SWIFTMODULE_VERSION_MINOR = 535; // top-level var decls
 
 /// A standard hash seed used for all string hashes in a serialized module.
 ///