https://bugs.webkit.org/show_bug.cgi?id=121311

Reviewed by Gavin Barraclough.

Source/JavaScriptCore:

We'd like to get rid of this pointless initialiser expression
in for-in statements.  Unfortunately we have to keep the no_in
variant of expression parsing to avoid ambiguity in the grammar.
There's a possibility that this will need to be rolled out, but
we'll need to live on it to see.

* bytecompiler/NodesCodegen.cpp:
(JSC::ForInNode::emitBytecode):
* parser/ASTBuilder.h:
(JSC::ASTBuilder::createForInLoop):
* parser/NodeConstructors.h:
(JSC::ForInNode::ForInNode):
* parser/Nodes.h:
* parser/Parser.cpp:
(JSC::::parseForStatement):
* parser/SyntaxChecker.h:
(JSC::SyntaxChecker::createForInLoop):

LayoutTests:

Update test cases to represent the new reality

* js/line-column-numbers-expected.txt:
* js/line-column-numbers.html:
* js/parser-syntax-check-expected.txt:
* js/script-tests/function-declaration-statement.js:
* js/script-tests/line-column-numbers.js:
(try.toFuzz22b):
* js/script-tests/parser-syntax-check.js:
* js/script-tests/toString-for-var-decl.js:
(f1):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@155724 268f45cc-cd09-0410-ab3c-d52691b4dbfc