Refactor LT tests for parsers: single-line comment

The tests for the parsing of line terminators were expressed using eval.
This made the tests more complex than necessary and also prevented the
tests from providing value to ECMAScript parsers.

Remove the use of eval and instead express the expectations with literal
source text. Rename the files to make each test's purpose more clear.

test/language/line-terminators/S7.3_A4_T2.js → test/language/line-terminators/comment-single-cr.js

@@ -3,16 +3,20 @@
 
 /*---
 info: Single line comments can contain Line Terminator at the end of line
+esid: sec-line-terminators
 es5id: 7.3_A4_T2
 description: Insert CARRIAGE RETURN (U+000D) into the end of single line comment
+negative:
+  phase: runtime
+  type: Test262Error
 ---*/
 
-// CHECK#1
-eval("// single line comment\u000D");
+// 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.
 
-// CHECK#2
-var x = 0;
-eval("// single line comment\u000D x = 1;");
-if (x !== 1) {
-  $ERROR('#1: var x = 0; eval("// single line comment\\u000D x = 1;"); x === 1. Actual: ' + (x));
-}
+// single line
throw new Test262Error();

test/language/line-terminators/S7.3_A3.1_T1.js → test/language/line-terminators/comment-single-lf.js

@@ -3,10 +3,21 @@
 
 /*---
 info: Single line comments are terminated by the LINE FEED (U+000A) character
+esid: sec-line-terminators
 es5id: 7.3_A3.1_T1
 description: Insert LINE FEED (\u000A) into single line comment
+negative:
+  phase: runtime
+  type: Test262Error
 ---*/
 
-assert.throws(Test262Error, function() {
-  eval("// single line \u000A throw new Test262Error();");
-});
+// 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.
+
+// single line
+throw new Test262Error();

test/language/line-terminators/S7.3_A4_T3.js → test/language/line-terminators/comment-single-ls.js

@@ -3,16 +3,20 @@
 
 /*---
 info: Single line comments can contain Line Terminator at the end of line
+esid: sec-line-terminators
 es5id: 7.3_A4_T3
 description: Insert LINE SEPARATOR (U+2028) into the end of single line comment
+negative:
+  phase: runtime
+  type: Test262Error
 ---*/
 
-// CHECK#1
-eval("// single line comment\u2028");
+// 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.
 
-// CHECK#2
-var x = 0;
-eval("// single line comment\u2028 x = 1;");
-if (x !== 1) {
-  $ERROR('#1: var x = 0; eval("// single line comment\\u2028 x = 1;"); x === 1. Actual: ' + (x));
-}
+// single line
throw new Test262Error();

test/language/line-terminators/S7.3_A4_T4.js → test/language/line-terminators/comment-single-ps.js

@@ -3,18 +3,22 @@
 
 /*---
 info: Single line comments can contain Line Terminator at the end of line
+esid: sec-line-terminators
 es5id: 7.3_A4_T4
 description: >
     Insert PARAGRAPH SEPARATOR (U+2029) into the end of single line
     comment
+negative:
+  phase: runtime
+  type: Test262Error
 ---*/
 
-// CHECK#1
-eval("// single line comment\u2029");
+// 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.
 
-// CHECK#2
-var x = 0;
-eval("// single line comment\u2029 x = 1;");
-if (x !== 1) {
-  $ERROR('#1: var x = 0; eval("// single line comment\\u2029 x = 1;"); x === 1. Actual: ' + (x));
-}
+// single line
throw new Test262Error();

test/language/line-terminators/S7.3_A3.2_T2.js → test/language/line-terminators/invalid-comment-single-cr.js

@@ -4,9 +4,13 @@
 /*---
 info: Single line comments can not contain CARRIAGE RETURN (U+000D) inside
 es5id: 7.3_A3.2_T2
+esid: sec-line-terminators
 description: Insert CARRIAGE RETURN (\u000D) into begin of single line comment
+negative:
+  phase: parse
+  type: SyntaxError
 ---*/
 
-assert.throws(SyntaxError, function() {
-  eval("//\u000D single line comment");
-});
+$DONOTEVALUATE();
+
+//
 this text is not included in the single-line comment that precedes it