code review 5376076: gc: remove m[k] = x, false

test/fixedbugs/bug242.go

 // $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: tuple evaluation order
 
 // Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // Test order of evaluation in tuple assignments.
 
 package main
 
@@ skipping 75 matching lines @@
         // 11          12
         *f(), p2 = m[gint()]
         a[11] += '0'
         if !p1 || p2 {
                 println("bad map check", i, p1, p2)
                 panic("fail")
         }
 
         m[13] = 'B'
         //  13        14
-        m[gint()] = gbyte(), false
+        delete(m, gint())
+        gbyte()
         if _, present := m[13]; present {
                 println("bad map removal")
                 panic("fail")
         }
 
         c := make(chan byte, 1)
         c <- 'C'
         // 15          16
         *f(), p1 = <-e1(c, 16)
         close(c)
@@ skipping 16 matching lines @@
                 println("bad interface check", i, p1, p2)
                 panic("fail")
         }
 
         s := string(a[0:i])
         if s != "def   ii A 0   C 0     " {
                 println("bad array results:", s)
                 panic("fail")
         }
 }