Flip flag in SupportedClasses analysis

- fix red bots

Change-Id: I7d3817cbcb9938d30e51e6c148119dcbae4bbb04

src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/lint/SupportedClassesGenerator.java

diff --git a/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/lint/SupportedClassesGenerator.java b/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/lint/SupportedClassesGenerator.java
index dec96bf..b165a93 100644
--- a/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/lint/SupportedClassesGenerator.java
+++ b/src/main/java/com/android/tools/r8/ir/desugar/desugaredlibrary/lint/SupportedClassesGenerator.java
@@ -99,7 +99,7 @@
           fullySupported &= analyzeMissingMembers(maxClass.methods(), methods, missingMethods);
           fullySupported &= builder.getFieldAnnotations(clazz).isEmpty();
           for (MethodAnnotation methodAnnotation : builder.getMethodAnnotations(clazz).values()) {
-            fullySupported &= !methodAnnotation.isCovariantReturnSupported();
+            fullySupported &= methodAnnotation.isCovariantReturnSupported();
           }
           builder.annotateClass(
               clazz.type, new ClassAnnotation(fullySupported, missingFields, missingMethods));