[ignition] desugar GetIterator() via bytecode rather than via AST

test/cctest/compiler/test-loop-assignment-analysis.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast/scopes.h"
 #include "src/compilation-info.h"
 #include "src/compiler/ast-loop-assignment-analyzer.h"
 #include "src/parsing/parse-info.h"
 #include "src/parsing/parsing.h"
 #include "src/parsing/rewriter.h"
@@ skipping 53 matching lines @@
 };
 }  // namespace
 
 
 TEST(SimpleLoop1) {
   TestHelper f("var x = 0; while (x) ;");
 
   f.CheckLoopAssignedCount(0, "x");
 }
 
-
-TEST(SimpleLoop2) {
-  const char* loops[] = {
-      "while (x) { var x = 0; }",            "for(;;) { var x = 0; }",
-      "for(;x;) { var x = 0; }",             "for(;x;x) { var x = 0; }",
-      "for(var i = x; x; x) { var x = 0; }", "for(y in 0) { var x = 0; }",
-      "for(y of 0) { var x = 0; }",          "for(var x = 0; x; x++) { }",
-      "for(var x = 0; x++;) { }",            "var x; for(;x;x++) { }",
-      "var x; do { x = 1; } while (0);",     "do { var x = 1; } while (0);"};
+TEST(ForIn1) {
+  const char* loops[] = {"for(x in 0) { }"};
 
   for (size_t i = 0; i < arraysize(loops); i++) {
     TestHelper f(loops[i]);
-    f.CheckLoopAssignedCount(1, "x");
-  }
-}
-
-
-TEST(ForInOf1) {
-  const char* loops[] = {
-      "for(x in 0) { }", "for(x of 0) { }",
-  };
-
-  for (size_t i = 0; i < arraysize(loops); i++) {
-    TestHelper f(loops[i]);
     f.CheckLoopAssignedCount(0, "x");
   }
 }
 
 
 TEST(Param1) {
   TestHelper f("while (1) a = 0;");
 
   f.CheckLoopAssignedCount(1, "a");
   f.CheckLoopAssignedCount(0, "b");
@@ skipping 185 matching lines @@
 
   f.CheckLoopAssignedCount(1, "x");
   f.CheckLoopAssignedCount(3, "y");
   f.CheckLoopAssignedCount(5, "z");
   f.CheckLoopAssignedCount(0, "w");
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8