Add syntax tests for declaration restrictions

Assert that declarations are not permitted in positions reserved for
statements only.

test/language/statements/do-while/decl-cls.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Class declaration not allowed in statement position
+esid: sec-do-while-statement
+es6id: 13.7.2
+negative: SyntaxError
+---*/
+
+do class C {} while (false)

test/language/statements/do-while/decl-const.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (const) not allowed in statement position
+esid: sec-do-while-statement
+es6id: 13.7.2
+negative: SyntaxError
+---*/
+
+do const x = null; while (false)

test/language/statements/do-while/decl-fun.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Class declaration not allowed in statement position
+esid: sec-do-while-statement
+es6id: 13.7.2
+negative: SyntaxError
+---*/
+
+do function f() {} while (false)

test/language/statements/do-while/decl-gen.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Generator declaration not allowed in statement position
+esid: sec-do-while-statement
+es6id: 13.7.2
+negative: SyntaxError
+---*/
+
+do function* g() {} while (false)

test/language/statements/do-while/decl-let.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (const) not allowed in statement position
+esid: sec-do-while-statement
+es6id: 13.7.2
+negative: SyntaxError
+---*/
+
+do let x; while (false)

test/language/statements/for-in/decl-cls.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Class declaration not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x in {}) class C {}

test/language/statements/for-in/decl-const.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (const) not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x in {}) const y = null;

test/language/statements/for-in/decl-fun.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Function declaration not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x in {}) function f() {}

test/language/statements/for-in/decl-gen.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Generator declaration not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x in {}) function* g() {}

test/language/statements/for-in/decl-let.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (let) not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x in {}) let y;

test/language/statements/for-of/decl-cls.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Class declaration not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x of []) class C {}

test/language/statements/for-of/decl-const.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (const) not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x of []) const y = null;

test/language/statements/for-of/decl-fun.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Function declaration not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x of []) function f() {}

test/language/statements/for-of/decl-gen.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Generator declaration not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x of []) function* g() {}

test/language/statements/for-of/decl-let.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (let) not allowed in statement position
+esid: sec-for-in-and-for-of-statements
+es6id: 13.7.5
+negative: SyntaxError
+---*/
+
+for (var x of []) let y;

test/language/statements/for/decl-cls.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Class declaration not allowed in statement position
+esid: sec-for-statement
+es6id: 13.7.4
+negative: SyntaxError
+---*/
+
+for ( ; false; ) class C {}

test/language/statements/for/decl-const.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (const) not allowed in statement position
+esid: sec-for-statement
+es6id: 13.7.4
+negative: SyntaxError
+---*/
+
+for ( ; false; ) const x = null;

test/language/statements/for/decl-fun.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Function declaration not allowed in statement position
+esid: sec-for-statement
+es6id: 13.7.4
+negative: SyntaxError
+---*/
+
+for ( ; false; ) function f() {}

test/language/statements/for/decl-gen.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Generator declaration not allowed in statement position
+esid: sec-for-statement
+es6id: 13.7.4
+negative: SyntaxError
+---*/
+
+for ( ; false; ) function* g() {}

test/language/statements/for/decl-let.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Lexical declaration (let) not allowed in statement position
+esid: sec-for-statement
+es6id: 13.7.4
+negative: SyntaxError
+---*/
+
+for ( ; false; ) let x;