Backed out changeset 9b0c51ce33e8 (bug 1331092)

js/src/jsopcode.cpp

@@ -2027,12 +2027,8 @@ ExpressionDecompiler::decompilePC(jsbytecode* pc, uint8_t defIndex)
           case JSOP_LAMBDA:
           case JSOP_LAMBDA_ARROW:
           case JSOP_TOASYNC:
-          case JSOP_TOASYNCGEN:
             return write("FUN");
 
-          case JSOP_TOASYNCITER:
-            return write("ASYNCITER");
-
           case JSOP_MOREITER:
             // For stack dump, defIndex == 0 is not used.
             MOZ_ASSERT(defIndex == 1);
@@ -2075,7 +2071,6 @@ ExpressionDecompiler::decompilePC(jsbytecode* pc, uint8_t defIndex)
           case JSOP_UNINITIALIZED:
             return write("UNINITIALIZED");
 
-          case JSOP_AWAIT:
           case JSOP_YIELD:
             // Printing "yield SOMETHING" is confusing since the operand doesn't
             // match to the syntax, since the stack operand for "yield 10" is