[vala/wip/issue/327: 48/64] Fix unassigned error and static access warning

[Rico Tzschichholz <ricotz src gnome org>]

commit 4d9116989df3e6bc1e70b98ee20aff11eb1c8dd5
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sat Mar 28 10:32:20 2020 +0100

    Fix unassigned error and static access warning

 vala/valaflowanalyzer.vala | 12 ++++++++++++
 vala/valamemberaccess.vala |  6 ++++--
 2 files changed, 16 insertions(+), 2 deletions(-)
---
diff --git a/vala/valaflowanalyzer.vala b/vala/valaflowanalyzer.vala
index ea0df7a83..24a0b195b 100644
--- a/vala/valaflowanalyzer.vala
+++ b/vala/valaflowanalyzer.vala
@@ -599,6 +599,18 @@ public class Vala.FlowAnalyzer : CodeVisitor {
                }
        }
 
+       public override void visit_with_statement (WithStatement stmt) {
+               if (unreachable (stmt)) {
+                       return;
+               }
+
+               current_block.add_node (stmt.expression);
+
+               handle_errors (stmt.expression);
+
+               stmt.body.accept_children (this);
+       }
+
        public override void visit_if_statement (IfStatement stmt) {
                if (unreachable (stmt)) {
                        return;
diff --git a/vala/valamemberaccess.vala b/vala/valamemberaccess.vala
index e95a3a9a4..3b114176d 100644
--- a/vala/valamemberaccess.vala
+++ b/vala/valamemberaccess.vala
@@ -304,8 +304,10 @@ public class Vala.MemberAccess : Expression {
 
                                if (symbol_reference == null && sym is WithStatement) {
                                        unowned WithStatement w = (WithStatement) sym;
-                                       inner = w.expression;
-                                       symbol_reference = inner.value_type.get_member (member_name);
+                                       symbol_reference = w.expression.value_type.get_member (member_name);
+                                       if (symbol_reference != null) {
+                                               inner = w.expression;
+                                       }
                                        may_access_instance_members = true;
                                        may_access_klass_members = true;
                                }