Includes test for #8354 (#10385)

packages/babel-plugin-proposal-optional-chaining/test/fixtures/regression/8354/exec.js

@@ -0,0 +1,5 @@
+const foo = undefined;
+const bar = 'bar';
+const foobar = foo?.replace(`foo${bar}`, '');
+
+expect(foobar).toBe(undefined);

packages/babel-plugin-proposal-optional-chaining/test/fixtures/regression/8354/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["proposal-optional-chaining", "transform-template-literals"]
+}