Refactor AnalysisFlags and their support in IDE

* Support flags with any value (not just Boolean)
* Support all flags by parsing arguments in KotlinFacetSettings, instead
  of manually listing known flags

 #KT-19210 Fixed

compiler/tests-common/org/jetbrains/kotlin/checkers/BaseDiagnosticsTest.kt

@@ -121,7 +121,7 @@ abstract class BaseDiagnosticsTest : KotlinMultiFileTestWithJava<TestModule, Tes
         override fun getFeatureSupport(feature: LanguageFeature): LanguageFeature.State =
                 languageFeatures[feature] ?: delegate.getFeatureSupport(feature)
 
-        override fun isFlagEnabled(flag: AnalysisFlag): Boolean = false
+        override fun <T> getFlag(flag: AnalysisFlag<T>): T = flag.defaultValue
     }
 
     inner class TestFile(