Revert of Add errors for declarations which conflict with catch parameters.

test/mjsunit/es6/for-each-in-catch.js

Index: test/mjsunit/es6/for-each-in-catch.js
diff --git a/test/mjsunit/es6/for-each-in-catch.js b/test/mjsunit/es6/for-each-in-catch.js
deleted file mode 100644
index 5ea24ac7dcaab814292d68d9d38054da0f6cebb3..0000000000000000000000000000000000000000
--- a/test/mjsunit/es6/for-each-in-catch.js
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-function checkIsRedeclarationError(code) {
-  try {
-    eval(`
-checkIsRedeclarationError : {
-  break checkIsRedeclarationError;
-${code}
-}
-`);
-    assertUnreachable();
-  } catch(e) {
-    assertInstanceof(e, SyntaxError );
-    assertTrue( e.toString().indexOf("has already been declared") >= 0 );
-  }
-}
-
-function checkIsNotRedeclarationError(code) {
-  assertDoesNotThrow(()=>eval(`
-checkIsNotRedeclarationError_label : {
-  break checkIsNotRedeclarationError_label;
-${code}
-}
-`));
-}
-
-
-let var_e = [
-  'var e',
-  'var {e}',
-  'var [e]',
-  'var {f:e}',
-  'var [[[], e]]'
-];
-
-let not_var_e = [
-  'var f',
-  'var {}',
-  'var {e:f}',
-  'e',
-  '{e}',
-  'let e',
-  'const e',
-  'let {e}',
-  'const {e}',
-  'let [e]',
-  'const [e]',
-  'let {f:e}',
-  'const {f:e}'
-];
-
-// Check that `for (var ... of ...)` cannot redeclare a simple catch variable
-// but `for (var ... in ...)` can.
-for (let binding of var_e) {
-  checkIsRedeclarationError(`
-try {
-  throw 0;
-} catch(e) {
-  for (${binding} of []);
-}
-`);
-
-  checkIsNotRedeclarationError(`
-try {
-  throw 0;
-} catch(e) {
-  for (${binding} in []);
-}
-`);
-}
-
-// Check that the above error occurs even for nested catches.
-for (let binding of var_e) {
-  checkIsRedeclarationError(`
-try {
-  throw 0;
-} catch(e) {
-  try {
-    throw 1;
-  } catch(f) {
-    try {
-      throw 2;
-    } catch({}) {
-      for (${binding} of []);
-    }
-  }
-}
-`);
-
-  checkIsNotRedeclarationError(`
-try {
-  throw 0;
-} catch(e) {
-  try {
-    throw 1;
-  } catch(f) {
-    try {
-      throw 2;
-    } catch({}) {
-      for (${binding} in []);
-    }
-  }
-}
-`);
-}
-
-// Check that the above error does not occur if a declaration scope is between
-// the catch and the loop.
-for (let binding of var_e) {
-  checkIsNotRedeclarationError(`
-try {
-  throw 0;
-} catch(e) {
-  (()=>{for (${binding} of []);})();
-}
-`);
-
-  checkIsNotRedeclarationError(`
-try {
-  throw 0;
-} catch(e) {
-  (function(){for (${binding} of []);})();
-}
-`);
-}
-
-// Check that there is no error when not declaring a var named e.
-for (let binding of not_var_e) {
-  checkIsNotRedeclarationError(`
-try {
-  throw 0;
-} catch(e) {
-  for (${binding} of []);
-}
-`);
-}
-
-// Check that there is an error for both for-in and for-of when redeclaring
-// a non-simple catch parameter
-for (let binding of var_e) {
-  checkIsRedeclarationError(`
-try {
-  throw 0;
-} catch({e}) {
-  for (${binding} of []);
-}
-`);
-
-  checkIsRedeclarationError(`
-try {
-  throw 0;
-} catch({e}) {
-  for (${binding} in []);
-}
-`);
-}
-
-// Check that the above error occurs even for nested catches.
-for (let binding of var_e) {
-  checkIsRedeclarationError(`
-try {
-  throw 0;
-} catch({e}) {
-  try {
-    throw 1;
-  } catch(f) {
-    try {
-      throw 2;
-    } catch({}) {
-      for (${binding} of []);
-    }
-  }
-}
-`);
-
-  checkIsRedeclarationError(`
-try {
-  throw 0;
-} catch({e}) {
-  try {
-    throw 1;
-  } catch(f) {
-    try {
-      throw 2;
-    } catch({}) {
-      for (${binding} in []);
-    }
-  }
-}
-`);
-}