[regexp] Fix unicode escapes in test strings

test/mjsunit/harmony/regexp-named-captures.js

Index: test/mjsunit/harmony/regexp-named-captures.js
diff --git a/test/mjsunit/harmony/regexp-named-captures.js b/test/mjsunit/harmony/regexp-named-captures.js
index 42dbe0f74feda70a6a77ec727a691a92eb88c6fc..4658af24be36effc5ca509f29db05c9e9ae31cad 100644
--- a/test/mjsunit/harmony/regexp-named-captures.js
+++ b/test/mjsunit/harmony/regexp-named-captures.js
@@ -195,10 +195,15 @@ assertTrue(/(?<\u0041>.)/u.test("a"));  // \u NonSurrogate
 assertTrue(/(?<\u{0041}>.)/u.test("a"));  // \u{ Non-surrogate }
 assertTrue(/(?<a\u{104A4}>.)/u.test("a"));  // \u{ Surrogate, ID_Continue }
 assertThrows("/(?<a\\u{110000}>.)/u", SyntaxError);  // \u{ Out-of-bounds }
+assertThrows("/(?<a\\uD801>.)/u", SyntaxError);  // Lead
+assertThrows("/(?<a\\uDCA4>.)/u", SyntaxError);  // Trail
 assertThrows("/(?<a\uD801>.)/u", SyntaxError);  // Lead
 assertThrows("/(?<a\uDCA4>.)/u", SyntaxError);  // Trail
+assertTrue(RegExp("(?<\\u{0041}>.)", "u").test("a"));  // Non-surrogate
+assertTrue(RegExp("(?<a\\u{104A4}>.)", "u").test("a"));  // Surrogate,ID_Continue
 assertTrue(RegExp("(?<\u{0041}>.)", "u").test("a"));  // Non-surrogate
 assertTrue(RegExp("(?<a\u{104A4}>.)", "u").test("a"));  // Surrogate,ID_Continue
+assertTrue(RegExp("(?<\\u0041>.)", "u").test("a"));  // Non-surrogate
 
 assertThrows("/(?<a\\uD801\uDCA4>.)/", SyntaxError);
 assertThrows("/(?<a\\uD801>.)/", SyntaxError);
@@ -207,10 +212,15 @@ assertTrue(/(?<\u0041>.)/.test("a"));
 assertThrows("/(?<\\u{0041}>.)/", SyntaxError);
 assertThrows("/(?<a\\u{104A4}>.)/", SyntaxError);
 assertThrows("/(?<a\\u{10FFFF}>.)/", SyntaxError);
+assertThrows("/(?<a\\uD801>.)/", SyntaxError);  // Lead
+assertThrows("/(?<a\\uDCA4>.)/", SyntaxError);  // Trail;
 assertThrows("/(?<a\uD801>.)/", SyntaxError);  // Lead
 assertThrows("/(?<a\uDCA4>.)/", SyntaxError);  // Trail
+assertThrows("/(?<\\u{0041}>.)/", SyntaxError);  // Non-surrogate
+assertThrows("/(?<a\\u{104A4}>.)/", SyntaxError);  // Surrogate, ID_Continue
 assertTrue(RegExp("(?<\u{0041}>.)").test("a"));  // Non-surrogate
 assertTrue(RegExp("(?<a\u{104A4}>.)").test("a"));  // Surrogate, ID_Continue
+assertTrue(RegExp("(?<\\u0041>.)").test("a"));  // Non-surrogate
 
 // @@replace with a callable replacement argument (no named captures).
 {