6g interface changes:
	* allow conversion between nil interface and any type.
	* mark signatures as DUPOK so that multiple .6 can
	  contain sigt.*[]byte and only one gets used.

R=ken
OCL=18538
CL=18542
7 files changed
tree: f3c233209ab5131760a45e54f4314388b4cfe1cc
  1. doc/
  2. include/
  3. lib/
  4. pkg/
  5. src/
  6. test/
  7. usr/