Merge pull request #7060 from webpack/test/any-comment-in-import

add test case for comments in import()

test/cases/parsing/comment-in-import/index.js

@@ -0,0 +1,8 @@
+it("should allow random comments in import()", () => {
+	return Promise.all([
+		import(/* hello world */ "./module"),
+		import(/* }); */ "./module"),
+		import(/* test */ "./module"),
+		import(/* 1234 */ "./module")
+	]);
+});