Fixed all-integral argument offset logic
Fixed int+float mixed argument offsetting
Working float variadic function
Factored out quiet-test script
Added run commands to float tests
Fixed float-in-case/switch tests and cc1 output
Fixed float-add test
Add warning for >> and << precedence
Removal of {DIE,WARN}_AT macros - line argument always true
double <-> pointer conversions are errors

Also qualified qualifier losses explicitly
Merge branch 'master' into experimental/float

Conflicts:
	src/cc1/Makefile.dep
	src/cc1/decl_init.c
	src/cc1/fold.c
	src/cc1/fold_sym.c
	src/cc1/ops/__builtin.c
	src/cc1/ops/__builtin_va.c
	src/cc1/ops/expr__Generic.c
	src/cc1/ops/expr_cast.c
	src/cc1/ops/expr_funcall.c
	src/cc1/ops/expr_op.c
	src/cc1/ops/stmt_return.c
	src/cc1/tokenise.c

This brings in the {warn,die}_at changes