Patches suggested for 3.0 branch

[Zack Weinberg]

http://gcc.gnu.org/ml/gcc-patches/2001-02/msg00350.html
	fixes extreme compile time regression in C++ -
	see discussion in gcc-bugs -
	has not been reviewed at all and I'm not sure it's correct -
	but we have to do *something* about this one, exponential
	time in the tree inliner is not happy -

http://gcc.gnu.org/ml/gcc-patches/2001-01/msg01335.html
	already approved for head and branch -
	I get bootstrap comparison failures right now, or I'd
	have applied it already -

zw