Split AnalysisFlag values to AnalysisFlags and JvmAnalysisFlags

Declare AnalysisFlags in module 'frontend', and JvmAnalysisFlags in
module 'frontend.java', to avoid leaking Java-related logic to common
compiler code

js/js.frontend/src/org/jetbrains/kotlin/js/config/JsConfig.java

@@ -169,10 +169,7 @@ public class JsConfig {
 
         Set<String> modules = new HashSet<>();
 
-        boolean skipMetadataVersionCheck =
-                getLanguageVersionSettings().getFlag(
-                        AnalysisFlag.getSkipMetadataVersionCheck()
-                );
+        boolean skipMetadataVersionCheck = getLanguageVersionSettings().getFlag(AnalysisFlags.getSkipMetadataVersionCheck());
 
         for (String path : libraries) {
             if (librariesToSkip != null && librariesToSkip.contains(path)) continue;
@@ -309,7 +306,7 @@ public class JsConfig {
         return factoryMap.computeIfAbsent(metadata, m -> {
             LanguageVersionSettings languageVersionSettings = CommonConfigurationKeysKt.getLanguageVersionSettings(configuration);
             assert m.getVersion().isCompatible() ||
-                   languageVersionSettings.getFlag(AnalysisFlag.getSkipMetadataVersionCheck()) :
+                   languageVersionSettings.getFlag(AnalysisFlags.getSkipMetadataVersionCheck()) :
                     "Expected JS metadata version " + JsMetadataVersion.INSTANCE + ", but actual metadata version is " + m.getVersion();
 
             ModuleDescriptorImpl moduleDescriptor = new ModuleDescriptorImpl(