Reduced memory usage

src/build/core/CompileDefinition.go

@@ -3,6 +3,7 @@ package core
 import (
 	"git.akyoto.dev/cli/q/src/build/ast"
 	"git.akyoto.dev/cli/q/src/build/errors"
+	"git.akyoto.dev/cli/q/src/build/scope"
 	"git.akyoto.dev/cli/q/src/build/token"
 )
 
@@ -20,5 +21,15 @@ func (f *Function) CompileDefinition(node *ast.Define) error {
 		return errors.New(&errors.UnusedVariable{Name: name}, f.File, node.Name.Position)
 	}
 
-	return f.storeVariableInRegister(name, node.Value, uses)
+	register := f.CurrentScope().MustFindFree(f.cpu.General)
+	f.CurrentScope().Reserve(register)
+	err := f.ExpressionToRegister(node.Value, register)
+
+	f.AddVariable(&scope.Variable{
+		Name:     name,
+		Register: register,
+		Alive:    uses,
+	})
+
+	return err
 }