c-decl.c (grokdeclarator): Instead of looking at TREE_OVERFLOW check if the...

c-decl.c (grokdeclarator): Instead of looking at TREE_OVERFLOW check if the constant fits in the index type.

2011-05-03  Richard Guenther  <rguenther@suse.de>

	* c-decl.c (grokdeclarator): Instead of looking at
	TREE_OVERFLOW check if the constant fits in the index type.

	* gcc.dg/large-size-array-5.c: New testcase.

From-SVN: r173297