[strong] Remove all remainders of strong mode

test/mjsunit/strong/undefined.js

-// Copyright 2014 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.
-
-// Flags: --strong-mode --harmony-sloppy
-
-// Repurposing the strict mode 'eval' and 'arguments' tests to test for correct
-// behaviour of 'undefined' as an identifier in strong mode.
-"use strict";
-
-function CheckStrongMode(code) {
-  let strictContexts = [
-    ["'use strict';", ""],
-    ["function outer() { 'use strict';", "}"],
-    ["function outer() { 'use strict'; function inner() {", "}}"],
-    ["class C { m() {", "} }"]
-  ]
-  let strongContexts = [
-    ["'use strong';", ""],
-    ["function outer() { 'use strong';", "}"],
-    ["function outer() { 'use strong'; function inner() {", "}}"],
-    ["class C { m() { 'use strong';", "} }"]
-  ]
-
-  for (let context of strictContexts) {
-    assertThrows(context[0] + code + context[1] + "; throw new TypeError();",
-                 TypeError);
-  }
-  for (let context of strongContexts) {
-    assertThrows(context[0] + code + context[1], SyntaxError);
-  }
-}
-
-// Binding 'undefined'
-CheckStrongMode("var undefined;");
-CheckStrongMode("let undefined;");
-CheckStrongMode("var undefined = 0;");
-CheckStrongMode("let undefined = 0;");
-CheckStrongMode("const undefined = 0;");
-CheckStrongMode("var x, y = 0, undefined;");
-CheckStrongMode("let x, y = 0, undefined;");
-
-// Function identifier is 'undefined'
-// Function declaration
-CheckStrongMode("function undefined() {}");
-assertThrows("function undefined() {'use strong';}", SyntaxError);
-
-// Generator function
-CheckStrongMode("function* undefined() {}");
-assertThrows("function* undefined() {'use strong';}", SyntaxError);
-
-// Function expression
-CheckStrongMode("(function undefined() {});");
-assertThrows("(function undefined() {'use strong';});", SyntaxError);
-CheckStrongMode("{foo: (function undefined(){})};");
-assertThrows("{foo: (function undefined(){'use strong';})};", SyntaxError);
-
-//Generator function expression
-CheckStrongMode("(function* undefined() {})");
-assertThrows("(function* undefined() {'use strong';})", SyntaxError);
-CheckStrongMode("{foo: (function* undefined(){})};");
-assertThrows("{foo: (function* undefined(){'use strong';})};", SyntaxError);
-
-// Function parameter named 'undefined'
-// Function declaration
-CheckStrongMode("function foo(a, b, undefined, c, d) {}");
-assertThrows("function foo(a, b, undefined, c, d) {'use strong';}",
-             SyntaxError);
-
-// Generator function declaration
-CheckStrongMode("function* foo(a, b, undefined, c, d) {}");
-assertThrows("function* foo(a, b, undefined, c, d) {'use strong';}",
-             SyntaxError);
-
-// Function expression
-CheckStrongMode("(function foo(a, b, undefined, c, d) {});");
-assertThrows("(function foo(a, b, undefined, c, d) {'use strong';})",
-             SyntaxError);
-CheckStrongMode("{foo: (function foo(a, b, undefined, c, d) {})};");
-assertThrows("{foo: (function foo(a, b, undefined, c, d) {'use strong';})};",
-             SyntaxError);
-
-// Generator function expression
-CheckStrongMode("(function* foo(a, b, undefined, c, d) {});");
-assertThrows("(function* foo(a, b, undefined, c, d) {'use strong';})",
-             SyntaxError);
-CheckStrongMode("{foo: (function* foo(a, b, undefined, c, d) {})};");
-assertThrows("{foo: (function* foo(a, b, undefined, c, d) {'use strong';})};",
-             SyntaxError);
-
-// Method parameter named 'undefined'
-// Class method
-CheckStrongMode("class C { foo(a, b, undefined, c, d) {} }");
-assertThrows("class C { foo(a, b, undefined, c, d) {'use strong';} }",
-             SyntaxError);
-
-//Class generator method
-CheckStrongMode("class C { *foo(a, b, undefined, c, d) {} }");
-assertThrows("class C { *foo(a, b, undefined, c, d) {'use strong';} }",
-             SyntaxError);
-
-//Object literal method
-CheckStrongMode("({ foo(a, b, undefined, c, d) {} });");
-assertThrows("({ foo(a, b, undefined, c, d) {'use strong';} });", SyntaxError);
-
-//Object literal generator method
-CheckStrongMode("({ *foo(a, b, undefined, c, d) {} });");
-assertThrows("({ *foo(a, b, undefined, c, d) {'use strong';} });", SyntaxError);
-
-// Class declaration named 'undefined'
-CheckStrongMode("class undefined {}");
-assertThrows("class undefined {'use strong'}", SyntaxError);
-
-// Class expression named 'undefined'
-CheckStrongMode("(class undefined {});");
-assertThrows("(class undefined {'use strong'});", SyntaxError);
-
-// Binding/assigning to 'undefined' in for
-CheckStrongMode("for(undefined = 0;false;);");
-CheckStrongMode("for(var undefined = 0;false;);");
-CheckStrongMode("for(let undefined = 0;false;);");
-CheckStrongMode("for(const undefined = 0;false;);");
-
-// Binding/assigning to 'undefined' in for-in
-CheckStrongMode("for(undefined in {});");
-CheckStrongMode("for(var undefined in {});");
-CheckStrongMode("for(let undefined in {});");
-CheckStrongMode("for(const undefined in {});");
-
-// Binding/assigning to 'undefined' in for-of
-CheckStrongMode("for(undefined of []);");
-CheckStrongMode("for(var undefined of []);");
-CheckStrongMode("for(let undefined of []);");
-CheckStrongMode("for(const undefined of []);");
-
-// Property accessor parameter named 'undefined'.
-CheckStrongMode("let o = { set foo(undefined) {} }");
-assertThrows("let o = { set foo(undefined) {'use strong';} }", SyntaxError);
-
-// catch(undefined)
-CheckStrongMode("try {} catch(undefined) {};");
-
-// Assignment to undefined
-CheckStrongMode("undefined = 0;");
-CheckStrongMode("print(undefined = 0);");
-CheckStrongMode("let x = undefined = 0;");
-
-// Compound assignment to undefined
-CheckStrongMode("undefined *= 0;");
-CheckStrongMode("undefined /= 0;");
-CheckStrongMode("print(undefined %= 0);");
-CheckStrongMode("let x = undefined += 0;");
-CheckStrongMode("let x = undefined -= 0;");
-CheckStrongMode("undefined <<= 0;");
-CheckStrongMode("undefined >>= 0;");
-CheckStrongMode("print(undefined >>>= 0);");
-CheckStrongMode("print(undefined &= 0);");
-CheckStrongMode("let x = undefined ^= 0;");
-CheckStrongMode("let x = undefined |= 0;");
-
-// Postfix increment with undefined
-CheckStrongMode("undefined++;");
-CheckStrongMode("print(undefined++);");
-CheckStrongMode("let x = undefined++;");
-
-// Postfix decrement with undefined
-CheckStrongMode("undefined--;");
-CheckStrongMode("print(undefined--);");
-CheckStrongMode("let x = undefined--;");
-
-// Prefix increment with undefined
-CheckStrongMode("++undefined;");
-CheckStrongMode("print(++undefined);");
-CheckStrongMode("let x = ++undefined;");
-
-// Prefix decrement with undefined
-CheckStrongMode("--undefined;");
-CheckStrongMode("print(--undefined);");
-CheckStrongMode("let x = --undefined;");
-
-// Function constructor: 'undefined' parameter name
-assertDoesNotThrow(function() {
-  Function("undefined", "");
-});
-assertThrows(function() {
-  Function("undefined", "'use strong';");
-}, SyntaxError);
-
-// Arrow functions with undefined parameters
-CheckStrongMode("(undefined => {return});");
-assertThrows("(undefined => {'use strong';});");
-
-CheckStrongMode("((undefined, b, c) => {return});");
-assertThrows("((undefined, b, c) => {'use strong';});");
-
-CheckStrongMode("((a, undefined, c) => {return});");
-assertThrows("((a, undefined, c) => {'use strong';});");
-
-CheckStrongMode("((a, b, undefined) => {return});");
-assertThrows("((a, b, undefined) => {'use strong';});");