Fix type detection in variable declaration

interp/cfg.go

@@ -20,6 +20,7 @@ const (
 
 var symKinds = [...]string{
 	Const: "Const",
+	Typ:   "Typ",
 	Var:   "Var",
 	Func:  "Func",
 	Bin:   "Bin",
@@ -1067,7 +1068,7 @@ func isNewDefine(n *Node) bool {
 	if n.anc.kind == RangeStmt && (n.anc.child[0] == n || n.anc.child[1] == n) {
 		return true
 	}
-	if n.anc.kind == ValueSpec {
+	if n.anc.kind == ValueSpec && n.anc.child[0] == n {
 		return true
 	}
 	return false

interp/run.go

@@ -236,7 +236,7 @@ func assign(n *Node) {
 	}
 }
 
-// assign0 implements assignement of zero value
+// assign0 implements assignement of zero value, as in a var statement
 func assign0(n *Node) {
 	l := len(n.child) - 1
 	zero := n.typ.zero

interp/src.go

@@ -58,7 +58,7 @@ func (interp *Interpreter) importSrcFile(path string) {
 	// Once all package sources have been parsed, execute entry points then init functions
 	for _, n := range rootNodes {
 		genRun(n)
-		//interp.fsize++
+		interp.fsize++
 		interp.resizeFrame()
 		interp.run(n, nil)
 	}