fix: catch without variable version check

Author: czosel

src/parser/try.js

@@ -29,7 +29,7 @@ module.exports = {
       this.next().expect("(") && this.next();
       const what = this.read_list(this.read_namespace_name, "|", false);
       let variable = null;
-      if (this.token === this.tok.T_VARIABLE) {
+      if (this.version < 800 || this.token === this.tok.T_VARIABLE) {
         variable = this.read_variable(true, false);
       }
       this.expect(")");

test/snapshot/try.test.js

@@ -13,6 +13,14 @@ describe("boolean", () => {
       parser.parseEval("try { call(); } catch (Exception) { do_something(); }")
     ).toMatchSnapshot();
   });
+  it("without variable in PHP < 8", () => {
+    expect(() =>
+      parser.parseEval(
+        "try { call(); } catch (Exception) { do_something(); }",
+        { parser: { version: "7.4" } }
+      )
+    ).toThrow(SyntaxError);
+  });
   it("qualified name", () => {
     expect(
       parser.parseEval(