[silgen] Add ManagedValue level APIs for creating CopyableToMoveOnlyWrapper and MarkMustCheck.

Just slimming down a larger commit.

Author: gottesmm

lib/SILGen/SILGenBuilder.cpp

@@ -921,3 +921,23 @@ ManagedValue SILGenBuilder::createGuaranteedMoveOnlyWrapperToCopyableValue(
   assert(mdi->getOperand()->getType().isObject() && "Expected an object?!");
   return ManagedValue::forUnmanaged(mdi);
 }
+
+ManagedValue
+SILGenBuilder::createCopyableToMoveOnlyWrapperValue(SILLocation loc,
+                                                    ManagedValue value) {
+  assert(value.isPlusOne(SGF) && "Argument must be at +1!");
+  CleanupCloner cloner(*this, value);
+  auto *mdi = SILBuilder::createCopyableToMoveOnlyWrapperValue(
+      loc, value.forward(getSILGenFunction()));
+  return cloner.clone(mdi);
+}
+
+ManagedValue
+SILGenBuilder::createMarkMustCheckInst(SILLocation loc, ManagedValue value,
+                                       MarkMustCheckInst::CheckKind kind) {
+  assert(value.isPlusOne(SGF) && "Argument must be at +1!");
+  CleanupCloner cloner(*this, value);
+  auto *mdi = SILBuilder::createMarkMustCheckInst(
+      loc, value.forward(getSILGenFunction()), kind);
+  return cloner.clone(mdi);
+}

lib/SILGen/SILGenBuilder.h

@@ -28,6 +28,7 @@
 #include "RValue.h"
 #include "swift/Basic/ProfileCounter.h"
 #include "swift/SIL/SILBuilder.h"
+#include "swift/SIL/SILInstruction.h"
 #include "swift/SIL/SILLocation.h"
 
 namespace swift {
@@ -414,6 +415,17 @@ class SILGenBuilder : public SILBuilder {
   ManagedValue
   createGuaranteedMoveOnlyWrapperToCopyableValue(SILLocation loc,
                                                  ManagedValue value);
+
+  using SILBuilder::createCopyableToMoveOnlyWrapperValue;
+  /// Create a copyable_to_moveonlywrapper. This expects a +1 value and returns
+  /// a +1 value. Semantically though the two things are different entities so
+  /// we are not forwarding ownership in the sense of the word.
+  ManagedValue createCopyableToMoveOnlyWrapperValue(SILLocation loc,
+                                                    ManagedValue value);
+
+  using SILBuilder::createMarkMustCheckInst;
+  ManagedValue createMarkMustCheckInst(SILLocation loc, ManagedValue value,
+                                       MarkMustCheckInst::CheckKind kind);
 };
 
 } // namespace Lowering