ariatemplates/hashspace — pull request #298 by PK1A (2014-09-17 15:54:06+00:00)
Title: refactor: remove _invalidexpression blocks

Another dead part of the code after migration to the Pratt's expression - we don't need invalid blocks on the compiler level as all the expressions are considered "valid" from the peg point of view - the actual validity check happens when the expression is parsed.