Initializer code is usually indented and this indentation is carried
over to generated code. This resulted in a piece of indented code in the
middle of the parser.
This commit wraps initializer code in |{...}|, which makes indentation
in generated parsers look a bit more natural.
Also added few missing |hasOwnProperty| calls that JSHint didn't detect
because it only looks whether there is an |if| statement wrapping the
loop body.
