Joe Groff f6d1999569 Parse: Introduce pattern vars into case scopes. ...

Create a scope for each case block to contain bindings from its patterns, and invoke addVarsToScope after parsing case label patterns to introduce vars into that scope. Refactor addVarsToScope to use an ASTWalker so it finds pattern vars embedded in expr patterns.

Swift SVN r5899

2013-06-29 16:41:57 +00:00

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