Refine lambda expression matching
r9814 added a rule to match lambda expressions, but had two issues:
1. The last argument in the lambda expression was not assigned to
variable.parameter.function.python. This is corrected by
adding ":" to the punctuation.separator.parameters.python group.
2. If the lambda expression used an assignment it led to a run-away
grammar. e.g. in "lambda foo=bar:" the "foo=bar" would be
matched by #keyword_arguments, but #keyword_arguments does not
allow the ":" to end the match. This is corrected by adding
":" to punctuation.separator.parameters.python endCaptures.
(This is not 100% correct, since ':' is not valid in a normal
function definition, but the alternative is to cut-and-paste
keyword_arguments into meta.function.inline.python.)
Changed:
U trunk/Bundles/Python.tmbundle/Syntaxes/Python.tmLanguage
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