updated test/IRGen/objc.swift for version bump

Author: najacque

test/IRGen/objc.swift

@@ -145,7 +145,7 @@ class WeakObjC {
 // CHECK:  i32 1, !"Objective-C Version", i32 2}
 // CHECK:  i32 1, !"Objective-C Image Info Version", i32 0}
 // CHECK:  i32 1, !"Objective-C Image Info Section", !"__DATA,__objc_imageinfo,regular,no_dead_strip"}
-//   83953408 == (5 << 24) | (1 << 16) | (7 << 8). 
-//     5 and 0 is the current major.minor version. 7 is the Swift ABI version.
-// CHECK:  i32 4, !"Objective-C Garbage Collection", i32 83953408}
+//   84018944 == (5 << 24) | (2 << 16) | (7 << 8). 
+//     5 and 2 is the current major.minor version. 7 is the Swift ABI version.
+// CHECK:  i32 4, !"Objective-C Garbage Collection", i32 84018944}
 // CHECK:  i32 1, !"Swift Version", i32 7}