Added tests for array pointers

tests/expectations/tests/with_array_pointers_arguments.rs

@@ -0,0 +1,21 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+
+extern "C" {
+    pub fn test_fn(
+        a: f32,
+        arr: *mut [::std::os::raw::c_int; 20usize],
+    ) -> ::std::os::raw::c_int;
+}
+extern "C" {
+    pub fn test_fn2(
+        arr: *const [f32; 20usize],
+        b: ::std::os::raw::c_int,
+    ) -> ::std::os::raw::c_int;
+}

tests/expectations/tests/without_array_pointers_arguments.rs

@@ -0,0 +1,21 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+
+extern "C" {
+    pub fn test_fn(
+        a: f32,
+        arr: *mut ::std::os::raw::c_int,
+    ) -> ::std::os::raw::c_int;
+}
+extern "C" {
+    pub fn test_fn2(
+        arr: *const f32,
+        b: ::std::os::raw::c_int,
+    ) -> ::std::os::raw::c_int;
+}

tests/headers/with_array_pointers_arguments.h

@@ -0,0 +1,5 @@
+// bindgen-flags: --use-array-pointers-in-arguments
+
+int test_fn(float a, int arr[20]);
+
+int test_fn2(const float arr[20], int b);

tests/headers/without_array_pointers_arguments.h

@@ -0,0 +1,4 @@
+
+int test_fn(float a, int arr[20]);
+
+int test_fn2(const float arr[20], int b);