string fix

compiler/NubLang/Generation/QBE/QBEGenerator.cs

@@ -758,6 +758,7 @@ public class QBEGenerator
 
     private static string EmitBinaryInstructionForOperator(BinaryOperator op, TypeNode type)
     {
+        // todo(nub31): Add support for string concatenation. Currently this expects ints or floats and will treat strings as ints
         return op switch
         {
             BinaryOperator.RightShift => type switch

compiler/NubLang/TypeChecking/TypeChecker.cs

@@ -358,13 +358,13 @@ public sealed class TypeChecker
             case BinaryOperatorSyntax.Plus:
             {
                 var left = CheckExpression(expression.Left);
-                if (left.Type is IntTypeNode or FloatTypeNode or StringTypeNode or StringTypeNode)
+                if (left.Type is IntTypeNode or FloatTypeNode or StringTypeNode or CStringTypeNode)
                 {
                     var right = CheckExpression(expression.Right, left.Type);
                     return new BinaryExpressionNode(left.Type, left, op, right);
                 }
 
-                throw new TypeCheckerException(Diagnostic.Error("The plus operator must be used with int, float or string types").At(expression.Left).Build());
+                throw new TypeCheckerException(Diagnostic.Error("The plus operator must be used with int, float, cstring or string types").At(expression.Left).Build());
             }
             case BinaryOperatorSyntax.Minus:
             case BinaryOperatorSyntax.Multiply:

example/src/main.nub

@@ -9,12 +9,10 @@ export struct Human
 
 extern "main" func main(args: []cstring): i64
 {
-    let x = [1]Human
+    let x: cstring = "test"
 
-    x[0] = {
-        name = "oliver"
-    }
+    x = x + "uwu"
 
-    puts(x[0].name)
+    puts(x)
     return 0
 }