Do not output warnings for things we deal with correctly.

Users cannot do anything about these warnings and there is no
way for them to make them not show up. Therefore, this is just
clutter in the output.

Reducing the level to warning for now so that it can be turned
on while investigating issues if needed.

BUG=142354449
R=clementbera@google.com, sgjesse@google.com

Change-Id: Ib0752e25eb86253f0ea2ae4b83334d62f87f23da
diff --git a/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java b/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java
index a2d2605..bba67e8 100644
--- a/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java
+++ b/src/main/java/com/android/tools/r8/ir/desugar/DesugaredLibraryWrapperSynthesizer.java
@@ -408,7 +408,7 @@
       appView
           .options()
           .reporter
-          .warning(
+          .info(
               new StringDiagnostic(
                   "Desugared library API conversion: Generating a large wrapper for "
                       + libraryClass.type
diff --git a/src/test/java/com/android/tools/r8/desugar/corelib/conversionTests/APIConversionLargeWarningTest.java b/src/test/java/com/android/tools/r8/desugar/corelib/conversionTests/APIConversionLargeWarningTest.java
index efbe9b6..1818802 100644
--- a/src/test/java/com/android/tools/r8/desugar/corelib/conversionTests/APIConversionLargeWarningTest.java
+++ b/src/test/java/com/android/tools/r8/desugar/corelib/conversionTests/APIConversionLargeWarningTest.java
@@ -24,14 +24,14 @@
         .addLibraryClasses(CustomLibClass.class)
         .enableCoreLibraryDesugaring(AndroidApiLevel.B)
         .compile()
-        .assertWarningMessageThatMatches(
+        .assertInfoMessageThatMatches(
             startsWith(
                 "Desugared library API conversion: Generating a large wrapper for"
                     + " java.util.stream.Stream"))
-        .assertNoWarningMessageThatMatches(
+        .assertNoInfoMessageThatMatches(
             startsWith(
                 "Desugared library API conversion: Generating a large wrapper for java.time.Clock"))
-        .assertNoWarningMessageThatMatches(
+        .assertNoInfoMessageThatMatches(
             startsWith(
                 "Desugared library API conversion: Generating a large wrapper for"
                     + " java.util.function.Function"));