gc: new typechecking rules

* Code for assignment, conversions now mirrors spec.
* Changed some snprint -> smprint.
* Renamed runtime functions to separate
  interface conversions from type assertions:
  convT2I, assertI2T, etc.
* Correct checking of \U sequences.

Fixes issue 840.
Fixes issue 830.
Fixes issue 778.

R=ken2
CC=golang-dev
http://codereview.appspot.com/1303042

1 files changed, 8 insertions, 8 deletions

diff --git a/test/interface/pointer.go b/test/interface/pointer.go
index be24952ff..e628b558e 100644
--- a/test/interface/pointer.go
+++ b/test/interface/pointer.go
@@ -9,28 +9,28 @@
 package main
 
 type Inst interface {
-	Next()	*Inst;
+	Next() *Inst
 }
 
 type Regexp struct {
-	code []Inst;
-	start	Inst;
+	code  []Inst
+	start Inst
 }
 
 type Start struct {
-	foo	*Inst;
+	foo *Inst
 }
 
 func (start *Start) Next() *Inst { return nil }
 
 
 func AddInst(Inst) *Inst {
-	print("ok in addinst\n");
+	print("ok in addinst\n")
 	return nil
 }
 
 func main() {
-	print("call addinst\n");
-	var x Inst = AddInst(new(Start));	// ERROR "illegal|incompatible|is not"
-	print("return from  addinst\n");
+	print("call addinst\n")
+	var x Inst = AddInst(new(Start)) // ERROR "pointer to interface"
+	print("return from  addinst\n")
 }