Added struct lifetime test

src/core/CompileAssign.go

@@ -39,6 +39,9 @@ func (f *Function) CompileAssign(node *ast.Assign) error {
 	case *eval.Register:
 		f.Execute(operation, leftValue.Register, right)
 	case *eval.Memory:
+		// TODO: Reservation needs to be canceled on defer
+		f.CurrentScope().Reserve(leftValue.Memory.Base)
+
 		if operation.Kind == token.Assign {
 			rightValue, err := f.Evaluate(right)
 

tests/programs/struct-lifetime.q

@@ -0,0 +1,8 @@
+main() {
+	c := new(Counter)
+	c.value += 16
+}
+
+struct Counter {
+	value int
+}

tests/programs_test.go

@@ -69,6 +69,7 @@ var programs = []struct {
 	{"index-static", 0},
 	{"index-dynamic", 0},
 	{"struct", 0},
+	{"struct-lifetime", 0},
 	{"len", 0},
 	{"cast", 0},
 	{"function-pointer", 0},