FIR IDE: Add parameter's and type's properties required for completion

idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/symbols/KtVariableLikeSymbol.kt

@@ -13,7 +13,9 @@ abstract class KtEnumEntrySymbol : KtVariableLikeSymbol() {
     final override val symbolKind: KtSymbolKind get() = KtSymbolKind.MEMBER
 }
 
-abstract class KtParameterSymbol : KtVariableLikeSymbol()
+abstract class KtParameterSymbol : KtVariableLikeSymbol() {
+    abstract val hasDefaultValue: Boolean
+}
 
 abstract class KtVariableSymbol : KtVariableLikeSymbol() {
     abstract val isVal: Boolean

idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/types/KtType.kt

@@ -16,6 +16,8 @@ interface KtType : ValidityTokenOwner {
     fun isEqualTo(other: KtType): Boolean
     fun isSubTypeOf(superType: KtType): Boolean
 
+    val isBuiltInFunctionalType: Boolean
+
     fun asStringForDebugging(): String
 }