Revert "Additional tests for QuantifiableAssertion" (#1458)

test/language/literals/regexp/invalid-optional-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<=.)?/;

test/language/literals/regexp/invalid-optional-negative-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<!.)?/;

test/language/literals/regexp/invalid-range-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<=.){2,3}/;

test/language/literals/regexp/invalid-range-negative-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<!.){2,3}/;

test/language/literals/regexp/u-invalid-optional-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<=.)?/u;

test/language/literals/regexp/u-invalid-optional-negative-lookahead.js

-// Copyright (C) 2016 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-es6id: B.1.4
-description: Quantifiable assertions disallowed with `u` flag
-info: |
-    The `u` flag precludes quantifiable assertions (even when Annex B is
-    honored)
-
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?!.)?/u;

test/language/literals/regexp/u-invalid-optional-negative-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<!.)?/u;

test/language/literals/regexp/u-invalid-range-lookahead.js

-// Copyright (C) 2016 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-es6id: B.1.4
-description: Quantifiable assertions disallowed with `u` flag
-info: |
-    The `u` flag precludes quantifiable assertions (even when Annex B is
-    honored)
-
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?=.){2,3}/u;

test/language/literals/regexp/u-invalid-range-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<=.){2,3}/u;

test/language/literals/regexp/u-invalid-range-negative-lookahead.js

-// Copyright (C) 2016 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-es6id: B.1.4
-description: Quantifiable assertions disallowed with `u` flag
-info: |
-    The `u` flag precludes quantifiable assertions (even when Annex B is
-    honored)
-
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?!.){2,3}/u;

test/language/literals/regexp/u-invalid-range-negative-lookbehind.js

-// Copyright (C) 2018 Igalia S. L. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-esid: sec-regular-expressions-patterns
-description: Lookbehinds are not treated as a QuantifiableAssertion
-info: |
-    Term[U] ::
-         [~U] QuantifiableAssertion Quantifier
-
-    QuantifiableAssertion[N]::
-        ( ? = Disjunction[~U, ?N] )
-        ( ? ! Disjunction[~U, ?N] )
-negative:
-  phase: parse
-  type: SyntaxError
----*/
-
-throw "Test262: This statement should not be evaluated.";
-
-/.(?<!.){2,3}/u;