[interpreter] Filter expression positions at source.

test/cctest/interpreter/test-source-positions.cc

Index: test/cctest/interpreter/test-source-positions.cc
diff --git a/test/cctest/interpreter/test-source-positions.cc b/test/cctest/interpreter/test-source-positions.cc
index f851b3875054a47afbbabf0466cd7479b3c486dd..9a00ae608d8118e6bb292eebd975413fbdc69e36 100644
--- a/test/cctest/interpreter/test-source-positions.cc
+++ b/test/cctest/interpreter/test-source-positions.cc
@@ -28,7 +28,8 @@ class OptimizedBytecodeSourcePositionTester final {
  public:
   explicit OptimizedBytecodeSourcePositionTester(Isolate* isolate)
       : isolate_(isolate) {
-    optimization_flags_ = {&FLAG_ignition_peephole, &FLAG_ignition_reo};
+    optimization_flags_ = {&FLAG_ignition_filter_positions,
+                           &FLAG_ignition_peephole, &FLAG_ignition_reo};
     SaveFlags();
   }
   ~OptimizedBytecodeSourcePositionTester() { RestoreFlags(); }
@@ -240,12 +241,24 @@ TEST(SourcePositionsEquivalent) {
       "}\n",
 
       "function g(a, b) { return a.func(b + b, b); }\n"
-      "g(new (function Obj() { this.func = function() { return; }})(), 1)\n"};
+      "g(new (function Obj() { this.func = function() { return; }})(), 1)\n",
+
+      "var x = 55;\n"
+      "var y = x + (x = 1) + (x = 2) + (x = 3);\n"
+      "return y;\n",
+
+      "var x = 55;\n"
+      "var y = x + (x = 1) + (x = 2) + (x = 3);\n"
+      "return y;\n",
+  };
 
   OptimizedBytecodeSourcePositionTester tester(handles.main_isolate());
   for (size_t i = 0; i < arraysize(test_scripts); ++i) {
     CHECK(tester.SourcePositionsMatch(test_scripts[i]));
   }
+
+  CHECK(
+      tester.SourcePositionsMatch("return some_global[name];", "name", "'a'"));
 }
 
 }  // namespace interpreter