Correctly generate LLVM types from Odin types.

examples/llvm-demo/demo.odin

@@ -3,9 +3,28 @@ package demo
 import "core:os"
 
 main :: proc() {
-	x := 1;
-	y := 2;
+	Foo :: struct {
+		x, y: int,
+	};
+
+	x := i32(1);
+	y := i32(2);
 	z := x + y;
 	w := z - 2;
+
+
+	c := 1 + 2i;
+	q := 1 + 2i + 3j + 4k;
+
+	s := "Hellope";
+
+	f: Foo;
+	pc: proc "contextless" (x: i32) -> Foo;
+	po: proc "odin" (x: i32) -> Foo;
+	e: enum{A, B, C};
+	u: union{i32, bool};
+	u1: union{i32};
+	um: union #maybe {^int};
+
 	// os.write_string(os.stdout, "Hellope\n");
 }