Add tests for Annex B extns to comments (#612)

test/annexB/language/comments/multi-line-html-close.js

@@ -0,0 +1,58 @@
+// 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-html-like-comments
+es6id: B1.3
+description: Optional HTMLCloseComment following MultiLineComment
+info: |
+    Comment ::
+      MultiLineComment
+      SingleLineComment
+      SingleLineHTMLOpenComment
+      SingleLineHTMLCloseComment
+      SingleLineDelimitedComment
+
+    MultiLineComment ::
+      /* FirstCommentLine[opt] LineTerminator MultiLineCommentChars[opt] * / HTMLCloseComment[opt]
+
+    HTMLCloseComment ::
+      WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative: Test262Error
+---*/
+
+var counter = 0;
+/*
+*/-->
+counter += 1;
+
+/*
+*/-->the comment extends to these characters
+counter += 1;
+
+/* optional FirstCommentLine
+*/-->the comment extends to these characters
+counter += 1;
+
+/*
+optional
+MultiLineCommentChars */-->the comment extends to these characters
+counter += 1;
+
+/*
+*/ /* optional SingleLineDelimitedCommentSequence */-->the comment extends to these characters
+counter += 1;
+
+/*
+*/ /**/ /* second optional SingleLineDelimitedCommentSequence */-->the comment extends to these characters
+counter += 1;
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+if (counter === 6) {
+  throw new Test262Error();
+}

test/annexB/language/comments/single-line-html-close-asi.js

@@ -0,0 +1,37 @@
+// 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-html-like-comments
+es6id: B1.3
+description: >
+    A SingleLineHTMLCloseComment is considered to be a LineTerminator for
+    purposes of parsing by the syntactic grammar.
+info: |
+    Comment ::
+      MultiLineComment
+      SingleLineComment
+      SingleLineHTMLOpenComment
+      SingleLineHTMLCloseComment
+      SingleLineDelimitedComment
+
+    MultiLineComment ::
+      /* FirstCommentLine[opt] LineTerminator MultiLineCommentChars[opt] * / HTMLCloseComment[opt]
+
+    HTMLCloseComment ::
+      WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative: Test262Error
+---*/
+
+var foo = [23]
+-->[0];
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+if (foo[0] === 23) {
+  throw new Test262Error();
+}

test/annexB/language/comments/single-line-html-close.js

@@ -0,0 +1,48 @@
+// 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-html-like-comments
+es6id: B1.3
+description: SingleLineHTMLCloseComment
+info: |
+    Comment ::
+      MultiLineComment
+      SingleLineComment
+      SingleLineHTMLOpenComment
+      SingleLineHTMLCloseComment
+      SingleLineDelimitedComment
+
+    SingleLineHTMLCloseComment ::
+      LineTerminatorSequenceHTMLCloseComment
+
+    HTMLCloseComment ::
+      WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative: Test262Error
+---*/
+
+var counter = 0;
+-->
+counter += 1;
+
+-->the comment extends to these characters
+counter += 1;
+
+   -->the comment extends to these characters
+counter += 1;
+
+/* optional SingleLineDelimitedCommentSequence */-->the comment extends to these characters
+counter += 1;
+
+/**/ /* second optional SingleLineDelimitedCommentSequence */-->the comment extends to these characters
+counter += 1;
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+if (counter === 5) {
+  throw new Test262Error();
+}

test/annexB/language/comments/single-line-html-open.js

@@ -0,0 +1,42 @@
+// 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-html-like-comments
+es6id: B1.3
+description: SingleLineHTMLOpenComment
+info: |
+    Comment ::
+      MultiLineComment
+      SingleLineComment
+      SingleLineHTMLOpenComment
+      SingleLineHTMLCloseComment
+      SingleLineDelimitedComment
+
+    SingleLineHTMLOpenComment ::
+      <!--SingleLineCommentCharsopt
+negative: Test262Error
+---*/
+
+var counter = 0;
+<!--
+counter += 1;
+
+<!--the comment extends to these characters
+counter += 1;
+
+counter += 1;<!--the comment extends to these characters
+counter += 1;
+
+var x = 0;
+x = -1 <!--x;
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+if (counter === 4 && x === -1) {
+  throw new Test262Error();
+}

test/language/comments/multi-line-html-close-extra.js

@@ -0,0 +1,22 @@
+// 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-html-like-comments
+es6id: B1.3
+description: >
+    Arbitrary character sequence not permitted before HTMLCloseComment token
+info: |
+    Comment ::
+      MultiLineComment
+      SingleLineComment
+      SingleLineHTMLOpenComment
+      SingleLineHTMLCloseComment
+      SingleLineDelimitedComment
+
+    MultiLineComment ::
+      /* FirstCommentLine[opt] LineTerminator MultiLineCommentChars[opt] * / HTMLCloseComment[opt]
+negative: SyntaxError
+---*/
+
+/*
+*/ the comment should not include these characters, regardless of AnnexB extensions -->

test/language/comments/single-line-html-close-without-lt.js

@@ -0,0 +1,20 @@
+// 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-html-like-comments
+es6id: B1.3
+description: An HTMLCloseComment must be preceeded by a LineTerminator
+info: |
+    Comment ::
+      MultiLineComment
+      SingleLineComment
+      SingleLineHTMLOpenComment
+      SingleLineHTMLCloseComment
+      SingleLineDelimitedComment
+
+    HTMLCloseComment ::
+      WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative: SyntaxError
+---*/
+
+;-->

test/language/module-code/comment-multi-line-html-close.js

@@ -0,0 +1,14 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: >
+    HTML-like comments are not available in module code
+    (MultiLineHTMLCloseComment)
+esid: sec-html-like-comments
+es6id: B1.3
+negative: SyntaxError
+flags: [module]
+---*/
+
+/*
+*/-->

test/language/module-code/comment-single-line-html-close.js

@@ -0,0 +1,13 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: >
+    HTML-like comments are not available in module code
+    (SingleLineHTMLCloseComment)
+esid: sec-html-like-comments
+es6id: B1.3
+negative: SyntaxError
+flags: [module]
+---*/
+
+-->

test/language/module-code/comment-single-line-html-open.js

@@ -0,0 +1,13 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: >
+    HTML-like comments are not available in module code
+    (SingleLineHTMLOpenComment)
+esid: sec-html-like-comments
+es6id: B1.3
+negative: SyntaxError
+flags: [module]
+---*/
+
+<!--