Allow Builtin.Load -> ~Escapable

Author: atrick

lib/AST/Builtins.cpp

@@ -923,8 +923,7 @@ static ValueDecl *getRefCountingOperation(ASTContext &ctx, Identifier id) {
 static ValueDecl *getLoadOperation(ASTContext &ctx, Identifier id) {
   return getBuiltinFunction(ctx, id, _thin,
                             _generics(_unrestricted,
-                                      _conformsTo(_typeparam(0), _copyable),
-                                      _conformsTo(_typeparam(0), _escapable)),
+                                      _conformsTo(_typeparam(0), _copyable)),
                             _parameters(_rawPointer),
                             _typeparam(0));
 }