Fix tests for HTML comments in function body evaluation (#2109)

Ref tc39/ecma262#1479

test/annexB/built-ins/Function/createdynfn-no-line-terminator-html-close-comment-body.js

@@ -4,22 +4,19 @@
 /*---
 esid: sec-createdynamicfunction
 description: >
-  Function parses the body text before forming the sourceText with the proper line feed.
+  Function body is wrapped with new lines before being parsed
 info: |
   The HTMLCloseComment requires a preceding line terminator.
 
   Runtime Semantics: CreateDynamicFunction(constructor, newTarget, kind, args)
   ...
-  16. Set bodyText to ? ToString(bodyText).
-  17. Let parameters be the result of parsing P, interpreted as UTF-16 encoded Unicode text as
+  Set bodyText to ? ToString(bodyText).
+  Let parameters be the result of parsing P, interpreted as UTF-16 encoded Unicode text as
   described in 6.1.4, using parameterGoal as the goal symbol. Throw a SyntaxError exception if the
   parse fails.
-  18. Let body be the result of parsing bodyText, interpreted as UTF-16 encoded Unicode text as
+  Let body be the result of parsing bodyText, interpreted as UTF-16 encoded Unicode text as
   described in 6.1.4, using goal as the goal symbol. Throw a SyntaxError exception if the parse
   fails.
-  ...
-  41. Let sourceText be the string-concatenation of prefix, " anonymous(", P, 0x000A (LINE FEED),
-  ") {", 0x000A (LINE FEED), bodyText, 0x000A (LINE FEED), and "}".
 ---*/
 
-assert.throws(SyntaxError, () => Function("-->"));
+Function("-->");