Add test case

test/cases/parsing/issue-7335/a.js

@@ -0,0 +1 @@
+export default 9;

test/cases/parsing/issue-7335/index.js

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+import x from "./a";
+
+const sum1 = (x, y, total = x + y) => total;
+const id1 = (a = x) => a;
+
+function sum2(x, y, total = x + y) { return total; }
+function id2(a = x) { return a; }
+
+const sum3 = function(x, y, total = x + y) { return total; }
+const id3 = function(a = x) { return a; }
+
+it("should shadow imported bindings", () => {
+	// Arrow functions
+	expect(sum1(2, 3)).toBe(5);
+	expect(id1(1)).toBe(1);
+	expect(id1()).toBe(9);
+
+	// Function declarations
+	expect(sum2(2, 3)).toBe(5);
+	expect(id2(1)).toBe(1);
+	expect(id2()).toBe(9);
+
+	// Function expressions
+	expect(sum3(2, 3)).toBe(5);
+	expect(id3(1)).toBe(1);
+	expect(id3()).toBe(9);
+});