more tidying:

- Strength reduce the interface to LogicalPathComponent::getMaterialized
   to now just return a SILValue for the address.  The full "Materialize"
   structure hasn't been needed since MaterializeExpr got removed.
 - Move 'struct Materialize' out of SILGen.h into SILGenLValues.cpp now
   that it is only used for logical property materialization.
 - Drop the dead 'loc' argument on DeallocStackCleanup.  The location is
   already specified when the cleanup is emitted.


Swift SVN r12827

lib/SILGen/SILGenFunction.h

@@ -22,6 +22,7 @@
 
 namespace swift {
 namespace Lowering {
+struct Materialize;
 
 /// SGFContext - Internal context information for the SILGenFunction visitor.
 ///
@@ -865,8 +866,11 @@ public:
   void deallocateUninitializedLocalVariable(SILLocation L, VarDecl *D);
 
   /// Enter a cleanup to deallocate a stack variable.
-  CleanupHandle enterDeallocStackCleanup(SILLocation loc, SILValue address);
+  CleanupHandle enterDeallocStackCleanup(SILValue address);
   
+  /// Enter a cleanup to emit a destroyValue/destroyAddr of the specified value.
+  CleanupHandle enterDestroyCleanup(SILValue valueOrAddr);
+
   /// Evaluate an Expr as an lvalue.
   LValue emitLValue(Expr *E);