allocator interface (first pass)

examples/programs/comptime_v1/main.bro

@@ -78,11 +78,11 @@ increment func(value i32) i32 {
 	return value + 1
 }
 
-call_native func(callback *func(value i32) i32, value i32) i32 {
+call_native func(callback @func(value i32) i32, value i32) i32 {
 	return callback(value)
 }
 
-call_fallible func(callback *func(flag bool) i32 ! Error, flag bool) i32 ! Error {
+call_fallible func(callback @func(flag bool) i32 ! Error, flag bool) i32 ! Error {
 	return try callback(flag)
 }
 

examples/programs/mem_allocator/main.bro

@@ -0,0 +1,20 @@
+mem :: import "@std/mem"
+
+main func() i32 {
+	memory ?*mut u8 = mem.alloc(mem.heap, 4, 1)
+	defer mem.free(mem.heap, memory, 4, 1)
+
+	if memory |bytes| {
+		bytes[0] = 10
+		bytes[1] = 20
+		bytes[2] = bytes[0] + bytes[1]
+
+		if (bytes[2] != 30) {
+			return 2
+		}
+
+		return 0
+	}
+
+	return 1
+}