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longer implies %pure-parser. The point of this change is to move towards being able to test the push parser code by running the entire test suite as if %push-parser had been declared. * data/push.c (yypush_parse): For impure mode, remove the yypushed_char, yypushed_val, and yypushed_loc arguments. Instead, declare these as local variables initialized to the global yychar, yylval, and yylloc. For the first yypush_parse invocation only, restore the initial values of these global variables when it's time to read a token since they have been overwritten. * src/parse-gram.y (prologue_declaration): Don't set pure_parser for %push-parser. * tests/calc.at (Simple LALR(1) Calculator): Always declare %pure-parser along with %push-parser since this test case was designed for pure push parsers. * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused. (AT_YACC_OR_PUSH_IF): New. (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but add a note that it's still wrong for some cases (as it has been for a while). (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since %push-parser no longer implies %pure-parser.
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