fix(rust): update queries to breaking changes

* `if_let_expression` was removed in https://github.com/tree-sitter/tree-sitter-rust/pull/152
* `attributes` were reworked in
  https://github.com/tree-sitter/tree-sitter-rust/pull/163 (no more
  `meta-item`)

queries/rust/folds.scm

@@ -14,7 +14,6 @@
  (for_expression)
  (while_expression)
  (if_expression)
- (if_let_expression)
  (match_expression)
  (call_expression)
 

queries/rust/highlights.scm

@@ -121,14 +121,14 @@
 (macro_definition "macro_rules!" @function.macro)
 
 ;; Attribute macros
-(attribute_item (meta_item (identifier) @function.macro))
-(meta_item (scoped_identifier (identifier) @function.macro .))
+(attribute_item (attribute (identifier) @function.macro))
+(attribute (scoped_identifier (identifier) @function.macro .))
 
 ;; Derive macros (assume all arguments are types)
-(meta_item
-  (identifier) @_name
-  arguments: (meta_arguments (meta_item (identifier) @type))
-  (#eq? @_name "derive"))
+; (attribute
+;   (identifier) @_name
+;   arguments: (attribute (attribute (identifier) @type))
+;   (#eq? @_name "derive"))
 
 ;; Function-like macros
 (macro_invocation

queries/rust/locals.scm

@@ -34,7 +34,7 @@
 (tuple_pattern
   (identifier) @definition.var) 
 
-(if_let_expression
+(let_condition
   pattern: (_
              (identifier) @definition.var))
 
@@ -93,7 +93,6 @@
  (for_expression)
  (loop_expression)
  (if_expression)
- (if_let_expression)
  (match_expression)
  (match_arm)