Fix imports in MIR

reid/src/ast/process.rs

@@ -20,9 +20,7 @@ impl ast::Module {
         for stmt in &self.top_level_statements {
             match stmt {
                 Import(import) => {
-                    for name in &import.0 {
-                        imports.push(mir::Import(name.clone(), import.1.into()));
-                    }
+                    imports.push(mir::Import(import.0.clone(), import.1.into()));
                 }
                 FunctionDefinition(ast::FunctionDefinition(signature, is_pub, block, range)) => {
                     let def = mir::FunctionDefinition {

reid/src/mir/display.rs

@@ -32,7 +32,7 @@ impl Display for Module {
 
 impl Display for Import {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "import {}", self.0)
+        write!(f, "import {}", self.0.join("::"))
     }
 }
 

reid/src/mir/mod.rs

@@ -209,7 +209,7 @@ pub enum ReturnKind {
 pub struct NamedVariableRef(pub TypeKind, pub String, pub Metadata);
 
 #[derive(Debug)]
-pub struct Import(pub String, pub Metadata);
+pub struct Import(pub Vec<String>, pub Metadata);
 
 #[derive(Debug)]
 pub enum ExprKind {

reid_src/hello_world.reid

@@ -1,10 +1,10 @@
 
-extern fn puts(message: string) -> i32;
+import std::print;
 
 fn main() -> u16 {
     let hello = "hello world";
 
-    puts(hello);
+    print(hello);
 
     return 0;
 }