add Str.endsWith

compiler/module/src/low_level.rs

@@ -6,6 +6,7 @@ pub enum LowLevel {
     StrConcat,
     StrIsEmpty,
     StrStartsWith,
+    StrEndsWith,
     StrSplit,
     StrCountGraphemes,
     ListLen,

compiler/module/src/symbol.rs

@@ -673,6 +673,7 @@ define_builtins! {
         5 STR_SPLIT: "split"
         6 STR_COUNT_GRAPHEMES: "countGraphemes"
         7 STR_STARTS_WITH: "startsWith"
+        8 STR_ENDS_WITH: "endsWith"
     }
     4 LIST: "List" => {
         0 LIST_LIST: "List" imported // the List.List type alias