* common.opt (gcolumn-info): Enable by default.
	* doc/invoke.texi (gcolumn-info): Document new default.

	* lib/scanasm.exp (dg-function-on-line): Accept optional column info.
	* gcc.dg/debug/dwarf2/pr53948.c: Likewise.
	* g++.dg/debug/dwarf2/pr77363.C: Likewise.
	* gcc.dg/debug/dwarf2/asm-line1.c: Add -gno-column-info to dg-options.
	* gcc.dg/debug/dwarf2/discriminator.c: Likewise.
	* g++.dg/debug/dwarf2/typedef6.C: Likewise.

From-SVN: r254010