User-defined operators on structs

test/libsolidity/syntaxTests/controlFlow/localStorageVariables/custom_bitand_operator_local_storage_variable_err.sol

@@ -0,0 +1,22 @@
+struct S {
+    uint v;
+}
+
+using {bitand as &} for S;
+
+function bitand(S storage, S storage) returns (S storage) {
+    S storage rTmp;
+    return rTmp;
+}
+
+contract C {
+    S s;
+    function f() public {
+        S storage sTmp;
+        sTmp & s;
+    }
+}
+
+// ----
+// TypeError 3464: (145-149): This variable is of storage pointer type and can be accessed without prior assignment, which would lead to undefined behaviour.
+// TypeError 3464: (234-238): This variable is of storage pointer type and can be accessed without prior assignment, which would lead to undefined behaviour.

test/libsolidity/syntaxTests/controlFlow/localStorageVariables/custom_bitor_operator_local_storage_variable_err.sol

@@ -0,0 +1,22 @@
+struct S {
+    uint v;
+}
+
+using {bitor as |} for S;
+
+function bitor(S storage, S storage) returns (S storage) {
+    S storage rTmp;
+    return rTmp;
+}
+
+contract C {
+    S s;
+    function f() public {
+        S storage sTmp;
+        sTmp | s;
+    }
+}
+
+// ----
+// TypeError 3464: (143-147): This variable is of storage pointer type and can be accessed without prior assignment, which would lead to undefined behaviour.
+// TypeError 3464: (232-236): This variable is of storage pointer type and can be accessed without prior assignment, which would lead to undefined behaviour.