[Exclusivity] Change the exclusivity checks inline heuristic threshold

Author: Joe Shajrawi

lib/SILOptimizer/Transforms/PerformanceInliner.cpp

@@ -105,7 +105,7 @@ class SILPerformanceInliner {
     /// The benefit of inlining an exclusivity-containing callee.
     /// The exclusivity needs to be: dynamic,
     /// has no nested conflict and addresses known storage
-    ExclusivityBenefit = RemovedCallBenefit + 300,
+    ExclusivityBenefit = RemovedCallBenefit + 125,
 
     /// The benefit of inlining class methods with -Osize.
     /// We only inline very small class methods with -Osize.