Add failing test for nested infer

Author: geirsagberg

internal/js_parser/ts_parser_test.go

@@ -180,6 +180,13 @@ func TestTSTypes(t *testing.T) {
 	expectPrintedTS(t, "type Foo = Bar extends [infer T] ? T : null", "")
 	expectPrintedTS(t, "type Foo = Bar extends [infer T extends string] ? T : null", "")
 	expectPrintedTS(t, "let x: A extends B<infer C extends D> ? D : never", "let x;\n")
+	expectPrintedTS(t, `type Normalized<T> = T extends Array<infer A extends object ? infer A : never>
+  ? Dictionary<Normalized<A>>
+  : {
+      [P in keyof T]: T[P] extends Array<infer A extends object ? infer A : never>
+        ? Dictionary<Normalized<A>>
+        : Normalized<T[P]>
+    }`, "")
 
 	expectPrintedTS(t, "let x: A.B<X.Y>", "let x;\n")
 	expectPrintedTS(t, "let x: A.B<X.Y>=2", "let x = 2;\n")