fix: handle type declaration inside function

_test/fun9.go

@@ -0,0 +1,12 @@
+package main
+
+type T uint
+
+func main() {
+	type myint int
+	var i = myint(1)
+	println(i)
+}
+
+// Output:
+// 1

interp/cfg.go

@@ -309,7 +309,25 @@ func (interp *Interpreter) cfg(root *node) ([]*node, error) {
 			return false
 
 		case typeSpec:
-			// processing already done in GTA pass
+			// processing already done in GTA pass for global types, only parses inlined types
+			if sc.def != nil {
+				typeName := n.child[0].ident
+				var typ *itype
+				if typ, err = nodeType(interp, sc, n.child[1]); err != nil {
+					return false
+				}
+				if typ.incomplete {
+					err = n.cfgErrorf("invalid type declaration")
+					return false
+				}
+				if n.child[1].kind == identExpr {
+					n.typ = &itype{cat: aliasT, val: typ, name: typeName}
+				} else {
+					n.typ = typ
+					n.typ.name = typeName
+				}
+				sc.sym[typeName] = &symbol{kind: typeSym, typ: n.typ}
+			}
 			return false
 
 		case arrayType, basicLit, chanType, funcType, mapType, structType:

interp/gta.go

@@ -174,7 +174,7 @@ func (interp *Interpreter) gta(root *node, rpath string) ([]*node, error) {
 				n.typ.name = typeName
 				n.typ.path = rpath
 			}
-			// Type may already be declared for a receiver in a method function
+			// Type may be already declared for a receiver in a method function
 			if sc.sym[typeName] == nil {
 				sc.sym[typeName] = &symbol{kind: typeSym}
 			} else {