clarify TreeParseError

src/rstd/collections/tree.rs

@@ -4,14 +4,14 @@ use crate::rstd::{atomic::au64::*, point::*};
 
 #[derive(Debug)]
 pub enum TreeParseError<E> {
-    Int(IntParseError),
+    Height(IntParseError),
     Point(PointParseError),
     Key(E),
 }
 
 impl<E> From<IntParseError> for TreeParseError<E> {
     fn from(value: IntParseError) -> Self {
-        Self::Int(value)
+        Self::Height(value)
     }
 }
 
@@ -24,8 +24,8 @@ impl<E> From<PointParseError> for TreeParseError<E> {
 impl<E: Display> Display for TreeParseError<E> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            Self::Int(int_error) => {
-                write!(f, "failed to parse tree height: {int_error}")
+            Self::Height(height_error) => {
+                write!(f, "failed to parse tree height: {height_error}")
             }
             Self::Point(point_error) => {
                 write!(f, "failed to parse node reference: {point_error}")