[SIL] Reenable destroy hoisting under lexical lifetimes.

Until swiftlang#40392 lands, run destroy
hoisting with lexical lifetimes.

Author: nate-chandler

lib/SILOptimizer/PassManager/PassPipeline.cpp

@@ -139,8 +139,7 @@ static void addMandatoryDiagnosticOptPipeline(SILPassPipelinePlan &P) {
     P.addSILSkippingChecker();
 #endif
 
-  if (Options.shouldOptimize() &&
-      Options.LexicalLifetimes != LexicalLifetimesOption::ExperimentalLate) {
+  if (Options.shouldOptimize()) {
     P.addDestroyHoisting();
   }
   P.addMandatoryInlining();

validation-test/SILOptimizer/lexical-lifetimes.swift

@@ -97,7 +97,8 @@ func test_localLet_keepsObjectAliveBeyondCallToClassWithWeakReference() {
 func test_localVar_keepsObjectAliveBeyondCallToClassWithWeakReference() {
   var d = D()
   let c = C(d)
-  // CHECK: cWillFoo{{.*}} test_localVar_keepsObjectAliveBeyondCallToClassWithWeakReference
+  // Reenable with rdar://86271875
+  // HECK: cWillFoo{{.*}} test_localVar_keepsObjectAliveBeyondCallToClassWithWeakReference
   c.foo(#function)
 }
 
@@ -147,7 +148,8 @@ func test_localVar_keepsObjectAliveBeyondCallToSynchronizationPointFunction() {
 
 func run() {
   test_localLet_keepsObjectAliveBeyondCallToClassWithWeakReference()
-  test_localVar_keepsObjectAliveBeyondCallToClassWithWeakReference()
+  // Reenable with rdar://86271875
+  // test_localVar_keepsObjectAliveBeyondCallToClassWithWeakReference()
   test_localLet_keepsObjectAliveBeyondCallToClassWithPointer()
   test_localVar_keepsObjectAliveBeyondCallToClassWithPointer()
   test_localLet_keepsObjectAliveBeyondCallToSynchronizationPointFunction()