Do not crash when parsing property hook default values

Author: dantleech

src/Parser.php

@@ -2316,6 +2316,7 @@ private function parseBinaryExpressionOrHigher($precedence, $parentNode) {
             // the original operator, and the newly constructed exponentiation-expression as the operand.
             $shouldOperatorTakePrecedenceOverUnary = false;
             switch ($token->kind) {
+                case TokenKind::OpenBraceToken:
                 case TokenKind::AsteriskAsteriskToken:
                     $shouldOperatorTakePrecedenceOverUnary = $leftOperand instanceof UnaryExpression;
                     break;
@@ -3187,6 +3188,11 @@ private function parsePostfixExpressionRest($expression, $allowUpdateExpression
         )) {
             return $expression;
         }
+
+        // property hooks ...
+        if ($tokenKind === TokenKind::OpenBraceToken) {
+            return $expression;
+        }
         if ($tokenKind === TokenKind::ColonColonToken) {
             $expression = $this->parseScopedPropertyAccessExpression($expression, null);
             return $this->parsePostfixExpressionRest($expression);