Rolling r8 1.6.22 -> 1.6.28

Change-Id: I231e5e1550655976bd81fc72d26aa07fa921a80a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1789743
Auto-Submit: Sam Maier <smaier@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#694267}

DEPS

@@ -1316,7 +1316,7 @@ deps = {
       'packages': [
           {
               'package': 'chromium/third_party/r8',
-              'version': 'PiWJNu1SdDl433fYwX_rFSX3zNZWizTfghShod_8QZ0C',
+              'version': 'VYsSPB6QlnJQH-2vJBhK8T6r0mexvbb9klMKwnK22GoC',
           },
       ],
       'condition': 'checkout_android',

third_party/r8/README.chromium

 Name: R8
 URL: https://r8.googlesource.com/r8
-Revision: c8785efaf448967838de4b1b6a0afea7d4ea5b74
-Version: 1.6.22-dev
+Revision: d11d42306845f15f383c1867f0f26c6f36e3adc4
+Version: 1.6.28-dev
 License: BSD 3-Clause
 License File: NOT_SHIPPED
 Security Critical: no

third_party/r8/local_modifications.diff

 diff --git a/src/main/java/com/android/tools/r8/utils/InternalOptions.java b/src/main/java/com/android/tools/r8/utils/InternalOptions.java
-index 2b170ba8f..684d496eb 100644
+index c9407a85f..800d6e760 100644
 --- a/src/main/java/com/android/tools/r8/utils/InternalOptions.java
 +++ b/src/main/java/com/android/tools/r8/utils/InternalOptions.java
-@@ -175,8 +175,8 @@ public class InternalOptions {
- 
+@@ -186,8 +186,8 @@ public class InternalOptions {
    // Optimization-related flags. These should conform to -dontoptimize and disableAllOptimizations.
    public boolean enableDynamicTypeOptimization = true;
+   public boolean enableFieldBitAccessAnalysis = false;
 -  public boolean enableHorizontalClassMerging = true;
 -  public boolean enableVerticalClassMerging = true;
 +  public boolean enableHorizontalClassMerging = false;
@@ -13,7 +13,7 @@ index 2b170ba8f..684d496eb 100644
    public boolean enableArgumentRemoval = true;
    public boolean enableUnusedArgumentRemoval = true;
    public boolean enableUnusedInterfaceRemoval = true;
-@@ -941,7 +941,7 @@ public class InternalOptions {
+@@ -902,7 +902,7 @@ public class InternalOptions {
      public static final String CLASS_NAME = "com.android.tools.r8.GeneratedOutlineSupport";
      public static final String METHOD_PREFIX = "outline";