[dev.ssa] cmd/compile/internal/gc: handle local function declarations

They are already handled by the frontend, we just need to
skip them when we see them in ssa.

Change-Id: I309d91552f96a761f8d429a2cab3a47d200ca9e5
Reviewed-on: https://go-review.googlesource.com/14341
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 01db547..9a9834f 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -96,6 +96,8 @@
 		case PAUTO:
 			// processed at each use, to prevent Addr coming
 			// before the decl.
+		case PFUNC:
+			// local function - already handled by frontend
 		default:
 			str := ""
 			if n.Class&PHEAP != 0 {