Sort Error Prone warnings list

Change-Id: I034540dad0b893d8427f8797c46a0be4ad283968

tools/BUILD

diff --git a/tools/BUILD b/tools/BUILD
index bd685d9..50cce2e 100644
--- a/tools/BUILD
+++ b/tools/BUILD
@@ -39,10 +39,6 @@
     name = "error_prone",
     javacopts = [
         "-XepDisableWarningsInGeneratedCode",
-        "-Xep:AmbiguousMethodReference:ERROR",
-        "-Xep:BadComparable:ERROR",
-        "-Xep:StringEquality:ERROR",
-        "-Xep:MissingCasesInEnumSwitch:ERROR",
         "-Xep:WildcardImport:ERROR",
     ],
     packages = ["error_prone_packages"],
@@ -54,10 +50,6 @@
     name = "full_error_prone",
     javacopts = [
         "-XepDisableWarningsInGeneratedCode",
-        "-Xep:MissingCasesInEnumSwitch:ERROR",
-        "-Xep:ReferenceEquality:WARN",
-        "-Xep:StringEquality:WARN",
-        "-Xep:WildcardImport:WARN",
         "-Xep:AmbiguousMethodReference:WARN",
         "-Xep:BadAnnotationImplementation:WARN",
         "-Xep:BadComparable:WARN",
@@ -87,6 +79,7 @@
         "-Xep:JUnit3FloatingPointComparisonWithoutDelta:WARN",
         "-Xep:JUnitAmbiguousTestClass:WARN",
         "-Xep:LiteralClassName:WARN",
+        "-Xep:MissingCasesInEnumSwitch:ERROR",
         "-Xep:MissingFail:WARN",
         "-Xep:MissingOverride:WARN",
         "-Xep:MutableConstantField:ERROR",
@@ -101,10 +94,12 @@
         "-Xep:PreconditionsInvalidPlaceholder:WARN",
         "-Xep:ProtoFieldPreconditionsCheckNotNull:WARN",
         "-Xep:ProtocolBufferOrdinal:WARN",
+        "-Xep:ReferenceEquality:WARN",
         "-Xep:RequiredModifiers:WARN",
         "-Xep:ShortCircuitBoolean:WARN",
         "-Xep:SimpleDateFormatConstant:WARN",
         "-Xep:StaticGuardedByInstance:WARN",
+        "-Xep:StringEquality:WARN",
         "-Xep:SynchronizeOnNonFinalField:WARN",
         "-Xep:TruthConstantAsserts:WARN",
         "-Xep:TypeParameterShadowing:WARN",
@@ -112,6 +107,7 @@
         "-Xep:URLEqualsHashCode:WARN",
         "-Xep:UnsynchronizedOverridesSynchronized:WARN",
         "-Xep:WaitNotInLoop:WARN",
+        "-Xep:WildcardImport:WARN",
     ],
     packages = ["error_prone_packages"],
 )