Ignore -overloadaggressively

This Proguard option is already the default R8 behavior.

Bug: 62478438
Change-Id: I313629fb4ad5406676caf3a53c51e559623f656f

src/main/java/com/android/tools/r8/shaking/ProguardConfigurationParser.java

diff --git a/src/main/java/com/android/tools/r8/shaking/ProguardConfigurationParser.java b/src/main/java/com/android/tools/r8/shaking/ProguardConfigurationParser.java
index 860fc45..4062853 100644
--- a/src/main/java/com/android/tools/r8/shaking/ProguardConfigurationParser.java
+++ b/src/main/java/com/android/tools/r8/shaking/ProguardConfigurationParser.java
@@ -48,6 +48,7 @@
           "filterlibraryjarswithorginalprogramjars",
           "dontskipnonpubliclibraryclasses",
           "dontskipnonpubliclibraryclassmembers",
+          "overloadaggressively",
           "invokebasemethod");
   private static final List<String> ignoredClassDescriptorOptions = ImmutableList
       .of("isclassnamestring",

src/test/java/com/android/tools/r8/shaking/ProguardConfigurationParserTest.java

diff --git a/src/test/java/com/android/tools/r8/shaking/ProguardConfigurationParserTest.java b/src/test/java/com/android/tools/r8/shaking/ProguardConfigurationParserTest.java
index 52bbda6..0e837bf 100644
--- a/src/test/java/com/android/tools/r8/shaking/ProguardConfigurationParserTest.java
+++ b/src/test/java/com/android/tools/r8/shaking/ProguardConfigurationParserTest.java
@@ -62,6 +62,8 @@
       VALID_PROGUARD_DIR + "dontskipnonpubliclibraryclasses.flags";
   private static final String DONT_SKIP_NON_PUBLIC_LIBRARY_CLASS_MEMBERS =
       VALID_PROGUARD_DIR + "dontskipnonpubliclibraryclassmembers.flags";
+  private static final String OVERLOAD_AGGRESIVELY =
+      VALID_PROGUARD_DIR + "overloadaggressively.flags";
   private static final String DONT_OPTIMIZE =
       VALID_PROGUARD_DIR + "dontoptimize.flags";
   private static final String SKIP_NON_PUBLIC_LIBRARY_CLASSES =
@@ -339,6 +341,13 @@
   }
 
   @Test
+  public void parseOverloadAggressively()
+      throws IOException, ProguardRuleParserException {
+    ProguardConfigurationParser parser = new ProguardConfigurationParser(new DexItemFactory());
+    parser.parse(Paths.get(OVERLOAD_AGGRESIVELY));
+  }
+
+  @Test
   public void parseDontOptimize()
       throws IOException, ProguardRuleParserException {
     ProguardConfigurationParser parser = new ProguardConfigurationParser(new DexItemFactory());

src/test/proguard/valid/overloadaggressively.flags

diff --git a/src/test/proguard/valid/overloadaggressively.flags b/src/test/proguard/valid/overloadaggressively.flags
new file mode 100644
index 0000000..312ebff
--- /dev/null
+++ b/src/test/proguard/valid/overloadaggressively.flags
@@ -0,0 +1,5 @@
+# Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+-overloadaggressively