Merge remote-tracking branch 'origin/master' into master-next

Author: swift-ci

validation-test/Sema/type_checker_perf/slow/rdar54580427.swift

@@ -1,6 +1,7 @@
 // FIXME: This should be linear instead of exponential.
 // RUN: %scale-test --begin 1 --end 10 --step 1 --select NumLeafScopes --invert-result %s -Xfrontend=-solver-expression-time-threshold=1
 // REQUIRES: asserts,no_asan
+// REQUIRES: rdar57138194,SR11770
 
 enum Val {
   case d([String: Val])