Cast to ExprStmt, style fixes

Author: ivan770

crates/hir_ty/src/diagnostics/expr.rs

@@ -334,18 +334,17 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
             None => return,
         };
 
-        let possible_tail_ty =
-            if let Some(possible_tail_ty) = self.infer.type_of_expr.get(possible_tail_id) {
-                possible_tail_ty
-            } else {
-                return;
-            };
+        let possible_tail_ty = match self.infer.type_of_expr.get(possible_tail_id) {
+            Some(ty) => ty,
+            None => return,
+        };
 
         if mismatch.actual != Ty::unit() || mismatch.expected != *possible_tail_ty {
             return;
         }
 
         let (_, source_map) = db.body_with_source_map(self.owner.into());
+
         if let Ok(source_ptr) = source_map.expr_syntax(possible_tail_id) {
             self.sink
                 .push(RemoveThisSemicolon { file: source_ptr.file_id, expr: source_ptr.value });

crates/ide/src/diagnostics/fixes.rs

@@ -16,7 +16,7 @@ use ide_db::{
 use syntax::{
     algo,
     ast::{self, edit::IndentLevel, make},
-    AstNode, Direction, T,
+    AstNode,
 };
 use text_edit::TextEdit;
 
@@ -110,9 +110,9 @@ impl DiagnosticWithFix for RemoveThisSemicolon {
             .expr
             .to_node(&root)
             .syntax()
-            .siblings_with_tokens(Direction::Next)
-            .filter_map(|it| it.into_token())
-            .find(|it| it.kind() == T![;])?
+            .parent()
+            .and_then(ast::ExprStmt::cast)
+            .and_then(|expr| expr.semicolon_token())?
             .text_range();
 
         let edit = TextEdit::delete(semicolon);