Backout c0d337401801,78d17e22a223 (bug 712714) for talos regressions across the board.

js/src/jsopcode.h

@@ -117,6 +117,8 @@ typedef enum JSOp {
 #define JOF_LEFTASSOC    (1U<<16) /* left-associative operator */
 #define JOF_DECLARING    (1U<<17) /* var, const, or function declaration op */
 #define JOF_INDEXBASE    (1U<<18) /* atom segment base setting prefix op */
+#define JOF_CALLOP       (1U<<19) /* call operation that pushes function and
+                                     this */
 #define JOF_PARENHEAD    (1U<<20) /* opcode consumes value of expression in
                                      parenthesized statement head */
 #define JOF_INVOKE       (1U<<21) /* JSOP_CALL, JSOP_NEW, JSOP_EVAL */