rename none to null

examples/programs/mem_allocator/raw_alloc.bro

@@ -1,7 +1,7 @@
 mem :: import "@std/mem"
 
 raw_allocator_test func() i32 {
-	resized ?*mut u8 = mem.raw_realloc(mem.c_allocator, none, 0, 4, 1)
+	resized ?*mut u8 = mem.raw_realloc(mem.c_allocator, null, 0, 4, 1)
 	if resized |bytes| {
 		bytes[0] = 10
 		bytes[1] = 20

examples/programs/mem_allocator/task_list.bro

@@ -11,9 +11,9 @@ TaskList :: struct {
 
 task_list_init func(allocator mem.Allocator) TaskList {
 	return TaskList {
-		ids = none,
-		priorities = none,
-		durations = none,
+		ids = null,
+		priorities = null,
+		durations = null,
 		len = 0,
 		capacity = 0,
 		allocator = allocator,
@@ -27,7 +27,7 @@ alloc_i32s func(allocator mem.Allocator, count usize) ?[]mut i32 {
 		failed = true
 		yield (&fallback).ptr[..0]
 	}
-	if (failed) return none
+	if (failed) return null
 	return values
 }
 
@@ -144,9 +144,9 @@ task_list_deinit func(list @mut TaskList) void {
 	free_i32s(list.allocator, list.ids)
 	free_i32s(list.allocator, list.priorities)
 	free_i32s(list.allocator, list.durations)
-	list.ids = none
-	list.priorities = none
-	list.durations = none
+	list.ids = null
+	list.priorities = null
+	list.durations = null
 	list.len = 0
 	list.capacity = 0
 }

examples/programs/mem_allocator/typed_alloc.bro

@@ -9,12 +9,12 @@ hide probe_count func(context ?@mut anyopaque) void {
 
 hide probe_alloc func(context ?@mut anyopaque, _ usize, _ usize) ?*mut u8 {
 	probe_count(context)
-	return none
+	return null
 }
 
 hide probe_realloc func(context ?@mut anyopaque, _ ?*mut u8, _ usize, _ usize, _ usize) ?*mut u8 {
 	probe_count(context)
-	return none
+	return null
 }
 
 hide probe_free func(context ?@mut anyopaque, _ ?*mut u8, _ usize, _ usize) void {
@@ -42,8 +42,8 @@ typed_allocator_test func() i32 {
 	}
 
 	_ = mem.raw_alloc(first_allocator, 1, 1)
-	_ = mem.raw_realloc(first_allocator, none, 0, 1, 1)
-	mem.raw_free(first_allocator, none, 0, 1)
+	_ = mem.raw_realloc(first_allocator, null, 0, 1, 1)
+	mem.raw_free(first_allocator, null, 0, 1)
 	_ = mem.raw_alloc(second_allocator, 1, 1)
 	if (first_calls[0] != 3 or second_calls[0] != 1) return 32