Add OperandOwnership.endsLifetime

And rename `uses.lifetimeEndingUses` to `uses.endingLifetime`

Author: atrick

SwiftCompilerSources/Sources/SIL/Operand.swift

@@ -154,7 +154,7 @@ extension Sequence where Element == Operand {
     ignoreUsers(ofType: I.self).singleUse?.instruction
   }
 
-  public var lifetimeEndingUses: LazyFilterSequence<Self> {
+  public var endingLifetime: LazyFilterSequence<Self> {
     return self.lazy.filter { $0.endsLifetime }
   }
 }
@@ -218,6 +218,17 @@ public enum OperandOwnership {
   /// Reborrow. Ends the borrow scope opened directly by the operand and begins one or multiple disjoint borrow scopes. If a forwarded value is reborrowed, then its base must also be reborrowed at the same point. (br, FIXME: should also include destructure, tuple, struct)
   case reborrow
 
+  public var endsLifetime: Bool {
+    switch self {
+    case .nonUse, .trivialUse, .instantaneousUse, .unownedInstantaneousUse,
+         .forwardingUnowned, .pointerEscape, .bitwiseEscape, .borrow,
+         .interiorPointer, .guaranteedForwarding:
+      return false
+    case .destroyingConsume, .forwardingConsume, .endBorrow, .reborrow:
+      return true
+    }
+  }
+
   public var _bridged: BridgedOperand.OperandOwnership {
     switch self {
     case .nonUse: