https://git.ruby-lang.org/ruby.git/commit/?id=49cad67635

From 49cad676351120927a9eda5fea58334c3d32f858 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 10 Jul 2019 00:20:00 +0900
Subject: Removed duplicate assignment

This `last_state` is set to `lex.state` just before the `switch`
statement, and `token_flush` nor `nextc` never change the state.

diff --git a/parse.y b/parse.y
index 43fa102..e75c0b4 100644
--- a/parse.y
+++ b/parse.y
@@ -8845,7 +8845,6 @@ parser_yylex(struct parser_params *p) https://github.com/ruby/ruby/blob/trunk/parse.y#L8845
 	return '=';
 
       case '<':
-	last_state = p->lex.state;
 	c = nextc(p);
 	if (c == '<' &&
 	    !IS_lex_state(EXPR_DOT | EXPR_CLASS) &&
-- 
cgit v0.10.2


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