[dart2js] Removing size checks from main output unit dump info tests

These were far too sensitive to code size changes and causing unhelpful failures.

Change-Id: I5293c7d281a5db2d36af35f67966f4d47413a78a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/243561
Reviewed-by: Joshua Litt <joshualitt@google.com>
Commit-Queue: Mark Zhou <markzipan@google.com>

Author: Markzipan

pkg/compiler/test/dump_info/data/closures.dart

@@ -62,7 +62,6 @@
   "id": "outputUnit/main",
   "kind": "outputUnit",
   "name": "main",
-  "size": 107495,
   "filename": "out",
   "imports": []
 }]

pkg/compiler/test/dump_info/data/deferred/main.dart

@@ -114,7 +114,6 @@
   "id": "outputUnit/main",
   "kind": "outputUnit",
   "name": "main",
-  "size": 183730,
   "filename": "out",
   "imports": []
 }]

pkg/compiler/test/dump_info/data/deferred_future/main.dart

@@ -120,7 +120,6 @@
   "id": "outputUnit/main",
   "kind": "outputUnit",
   "name": "main",
-  "size": 190176,
   "filename": "out",
   "imports": []
 }]

pkg/compiler/test/dump_info/data/js_members.dart

@@ -138,7 +138,6 @@
   "id": "outputUnit/main",
   "kind": "outputUnit",
   "name": "main",
-  "size": 112396,
   "filename": "out",
   "imports": []
 }]

pkg/compiler/test/dump_info/data/members.dart

@@ -77,7 +77,6 @@
   "id": "outputUnit/main",
   "kind": "outputUnit",
   "name": "main",
-  "size": 91101,
   "filename": "out",
   "imports": []
 }]

pkg/compiler/test/dump_info/dump_info_test.dart

@@ -22,14 +22,23 @@ import '../equivalence/id_equivalence_helper.dart';
 final JsonEncoder encoder = const JsonEncoder();
 final JsonEncoder indentedEncoder = const JsonEncoder.withIndent('  ');
 
-String jsonEncode(object, {bool indent = true}) {
+String jsonEncode(Map object, {bool indent = true}) {
   var jsonEncoder = indent ? indentedEncoder : encoder;
   // Filter block comments since they interfere with ID test comments.
   var json =
       jsonEncoder.convert(object).replaceAll('/*', '').replaceAll('*/', '');
   return json;
 }
 
+Map filteredJsonObject(Map object, Set<String> filteredFields) {
+  Map filteredObject = {};
+  object.forEach((key, value) {
+    if (filteredFields.contains(key)) return;
+    filteredObject[key] = value;
+  });
+  return filteredObject;
+}
+
 main(List<String> args) {
   asyncTest(() async {
     Directory dataDir = Directory.fromUri(Platform.script.resolve('data'));
@@ -85,8 +94,13 @@ class DumpInfoDataComputer extends DataComputer<Features> {
       features.addElement(
           Tags.dependencies, jsonEncode(dumpInfoState.info.dependencies));
       for (final outputUnit in dumpInfoState.info.outputUnits) {
-        features.addElement(
-            Tags.outputUnits, jsonEncode(outputUnit.accept(converter)));
+        var outputUnitJsonObject = outputUnit.accept(converter);
+        // Remove the size from the main output unit due to high noise ratio.
+        if (outputUnit.name == 'main') {
+          outputUnitJsonObject =
+              filteredJsonObject(outputUnitJsonObject, {'size'});
+        }
+        features.addElement(Tags.outputUnits, jsonEncode(outputUnitJsonObject));
       }
       features.addElement(
           Tags.deferredFiles, jsonEncode(dumpInfoState.info.deferredFiles));