fix: loop-syntax should allow for "loop\n{..."

Author: phorward

src/compiler/parser.rs

@@ -5242,6 +5242,10 @@ impl Parser {
                                                                         "emit" => "identifier",
                                                                         "value" => "_"
                                                                     ])),
+                                                                    (value!([
+                                                                        "emit" => "identifier",
+                                                                        "value" => "___"
+                                                                    ])),
                                                                     (value!([
                                                                         "emit" => "value_instance",
                                                                         "children" =>

src/compiler/tokay.tok

@@ -287,7 +287,7 @@ Atomic : @{
     Keyword<'for'> _ Expect<Lvalue> _ Keyword<Expect<'in'>> _ Expect<Expression> \
          ___ Expect<Statement>  ast("op_for")
     Keyword<'loop'> _ Expression ___ Block  ast("op_loop")
-    Keyword<'loop'> _ Expect<Block>  ast("op_loop")
+    Keyword<'loop'> _ ___ Expect<Block>  ast("op_loop")
     Load
 }