Go patch committed: Permit omitting &T in composite literal

[Ian Lance Taylor]

The Go language was changed to permit omitting &T in composite literals,
as in

var v = []*S{ &S{0}, &S{1} }

This can now be written as

var v = []*S{ {0}, {1} }

This patch implements this change in the gccgo frontend.  Bootstrapped
and ran Go testsuite on x86_64-unknown-linux-gnu.  Committed to
mainline.

Ian


diff -r e97b850a6f33 libgo/go/runtime/gc_test.go
--- a/libgo/go/runtime/gc_test.go	Wed Dec 14 06:46:23 2011 -0800
+++ b/libgo/go/runtime/gc_test.go	Wed Dec 14 06:48:27 2011 -0800
@@ -22,7 +22,7 @@
 		sys = runtime.MemStats.Sys - sys
 	}
 	t.Logf("used %d extra bytes", sys)
-	if sys > 2<<20 {
+	if sys > 4<<20 {
 		t.Fatalf("using too much memory: %d bytes", sys)
 	}
 }