drop unused compound assignments (#2230)

fixes #2226
2017-07-14 00:39:34 +08:00
parent 458e3e15f0
commit 5229cb2b1b
3 changed files with 118 additions and 21 deletions
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -863,7 +863,7 @@ collapse_vars_unary: {
    input: {
        function f0(o, p) {
            var x = o[p];
-            delete x;
+            return delete x;
        }
        function f1(n) {
            var k = !!n;
@@ -893,7 +893,7 @@ collapse_vars_unary: {
    expect: {
        function f0(o, p) {
            var x = o[p];
-            delete x;
+            return delete x;
        }
        function f1(n) {
            return n > +!!n