fix: keep space between 'for' and 'await' regardless of spaceAfterForKeyword (#692)

`gen_for_of_stmt` emitted the configured space between the `for` keyword
and the next token *before* the `await` marker, then appended the literal
`"await "`. With `forOfStatement.spaceAfterForKeyword: false` that
produced `forawait (...)`, which is not valid syntax.

Always insert the space between `for` and `await`, and let the config
flag control the space between the keyword sequence and the open paren:

- spaceAfterForKeyword: true  -> 'for await (...)'  /  'for (...)'
- spaceAfterForKeyword: false -> 'for await(...)'   /  'for(...)'

Author: todor-a

src/generation/generate.rs

@@ -5137,12 +5137,13 @@ fn gen_for_of_stmt<'a>(node: &ForOfStmt<'a>, context: &mut Context<'a>) -> Print
   items.push_info(start_header_ln);
   items.push_info(start_header_lsil);
   items.push_sc(sc!("for"));
-  if context.config.for_of_statement_space_after_for_keyword {
-    items.push_space();
-  }
   if node.is_await() {
     // todo: generate comments around await token range
-    items.push_sc(sc!("await "));
+    items.push_space();
+    items.push_sc(sc!("await"));
+  }
+  if context.config.for_of_statement_space_after_for_keyword {
+    items.push_space();
   }
   let inner_header_range = SourceRange::new(node.left.start(), node.right.end());
   items.extend(gen_node_in_parens(

tests/specs/statements/forOfStatement/ForOfStatement_SpaceAfterForKeyword_False.txt

@@ -10,3 +10,13 @@ for(const t of test) {
     a;
     b;
 }
+
+== should keep space between `for` and `await` (issue #692) ==
+for await (const t of test) {
+    a;
+}
+
+[expect]
+for await(const t of test) {
+    a;
+}