re PR c++/34600 (ICE with invalid use of extern)

/cp
2008-08-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/34600
	* decl.c (grokdeclarator): In case of extern and initializer, return
	error_mark_node after the error.

/testsuite
2008-08-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/34600
	* g++.dg/parse/crash43.C: New.

From-SVN: r139099