Update unit test for deprecation mismatch

The severity changed; update the unit tests.

Test: This is it
Change-Id: I21fcb3442ba7cce39db3dbaf384fd41a3792b76c

src/test/java/com/android/tools/metalava/ApiFileTest.kt

@@ -1421,12 +1421,12 @@ class ApiFileTest : DriverTest() {
             ),
 
             warnings = """
-                    src/test/pkg/Foo.java:7: warning: Method test.pkg.Foo.method1(): @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
-                    src/test/pkg/Foo.java:8: warning: Method test.pkg.Foo.method2(): @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
-                    src/test/pkg/Foo.java:9: warning: Class test.pkg.Foo.Inner1: @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
-                    src/test/pkg/Foo.java:10: warning: Class test.pkg.Foo.Inner2: @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
-                    src/test/pkg/Foo.java:11: warning: Class test.pkg.Foo.Inner3: @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
-                        """,
+                src/test/pkg/Foo.java:7: error: Method test.pkg.Foo.method1(): @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
+                src/test/pkg/Foo.java:8: error: Method test.pkg.Foo.method2(): @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
+                src/test/pkg/Foo.java:9: error: Class test.pkg.Foo.Inner1: @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
+                src/test/pkg/Foo.java:10: error: Class test.pkg.Foo.Inner2: @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
+                src/test/pkg/Foo.java:11: error: Class test.pkg.Foo.Inner3: @Deprecated annotation (present) and @deprecated doc tag (not present) do not match [DeprecationMismatch]
+                """,
 
             api = """
                     package test.pkg {