update convlit.go to current spec

R=r
DELTA=17  (2 added, 9 deleted, 6 changed)
OCL=28286
CL=28286

test/convlit.go

@@ -4,18 +4,18 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// ! errchk $G -e $D/$F.go
-
 package main
 
-// explicit conversions are okay, even if they overflow
+// explicit conversion of constants is work in progress.
+// the ERRORs in this block are debatable, but they're what
+// the language spec says for now.
 var x1 = string(1);
 var x2 string = string(1);
-var x3 = int(1.5);
+var x3 = int(1.5);	// ERROR "convert|truncate"
-var x4 int = int(1.5);
+var x4 int = int(1.5);	// ERROR "convert|truncate"
 var x5 = "a" + string(1);
-var x6 = int(1e100);
+var x6 = int(1e100);	// ERROR "overflow"
-var x7 = float(1e1000);
+var x7 = float(1e1000);	// ERROR "overflow"
 
 // implicit conversions merit scrutiny
 var s string;

test/golden.out

@@ -23,15 +23,6 @@ throw: interface hash
 
 panic PC=xxx
 
-=========== ./convlit.go
-BUG: errchk: ./convlit.go: unmatched error messages:
-==================================================
-./convlit.go:8: constant 1.5 truncated to integer
-./convlit.go:11: constant 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 overflows int
-./convlit.go:12: constant 34911850510716223476646871064527264675788468424693128821036252992306087892081078460155404277013793117885253p+2968 overflows float
-./convlit.go:9: constant 1.5 truncated to integer
-==================================================
-
 =========== ./helloworld.go
 hello, world