1959         return all(node.definitions, function(var_def) {  argument
1960             return !var_def.value;
4157         function merge_conditional_assignments(var_def, exprs, keep) {  argument
4159             if (var_def.name instanceof AST_Destructured) return;
4161             var def = var_def.name.definition();
4163                 var cond = to_conditional_assignment(compressor, def, var_def.value, exprs[0]);
4165                 var_def.value = cond;
9866             function process_var_def(var_def) {  argument
9867                 if (!var_def.value) return;
9868                 exprs.push(make_node(AST_Assign, var_def, {
9870                     left: var_def.name.convert_symbol(AST_SymbolRef, function(ref) {
9873                     right: var_def.value,
10070                         stat.definitions.forEach(function(var_def) {  argument
10071                             var def = var_def.name.definition().redefined();
10073                             var_def.name = var_def.name.clone();
10074                             var_def.name.thedef = def;
11201                     var var_def = stat.definitions[j];
11202                     var name = flatten_var(var_def.name);
11203                     var value = var_def.value;
11206                         value = make_sequence(var_def, exprs);