Fix JSOP_BINDNAME to have JOF_SET (which is now the same as JOF_ASSIGNING, so use that where it's a clearer name; 94693, r=me).

js/src/jsapi.c

@@ -3566,7 +3566,7 @@ JS_IsAssigning(JSContext *cx)
         continue;
     if (!fp || !(pc = fp->pc))
         return JS_FALSE;
-    return (js_CodeSpec[*pc].format & JOF_SET) != 0;
+    return (js_CodeSpec[*pc].format & JOF_ASSIGNING) != 0;
 }
 
 JS_PUBLIC_API(void)

js/src/jsopcode.h

@@ -82,7 +82,7 @@ typedef enum JSOp {
 #define JOF_POST          0x0400  /* postorder increment or decrement */
 #define JOF_IMPORT        0x0800  /* import property op */
 #define JOF_FOR           0x1000  /* for-in property op */
-#define JOF_ASSIGNING     0x2000  /* hint for JSClass.resolve, used for ops
+#define JOF_ASSIGNING     JOF_SET /* hint for JSClass.resolve, used for ops
                                      that do simplex assignment */
 #define JOF_BACKPATCH     0x4000  /* backpatch placeholder during codegen */
 #define JOF_LEFTASSOC     0x8000  /* left-associative operator */

js/src/jsopcode.tbl

@@ -206,7 +206,7 @@ OPDEF(JSOP_FORELEM,   106,"forelem",    NULL,         1,  2,  4,  0,  JOF_BYTE |
 OPDEF(JSOP_POP2,      107,"pop2",       NULL,         1,  2,  0,  0,  JOF_BYTE)
 
 /* ECMA-compliant assignment ops. */
-OPDEF(JSOP_BINDNAME,  108,"bindname",   NULL,         3,  0,  1,  0,  JOF_CONST|JOF_NAME|JOF_ASSIGNING)
+OPDEF(JSOP_BINDNAME,  108,"bindname",   NULL,         3,  0,  1,  0,  JOF_CONST|JOF_NAME|JOF_SET|JOF_ASSIGNING)
 OPDEF(JSOP_SETNAME,   109,"setname",    NULL,         3,  2,  1,  1,  JOF_CONST|JOF_NAME|JOF_SET|JOF_ASSIGNING)
 
 /* Exception handling ops. */