Split CompileTimeConstant into two entities

1. ConstantValue
	* just holds some value and its type
	* implementations for concrete constants
2. CompileTimeConstant
	* is only produced by ConstantExpressionEvaluator
	* has additional flags (canBeUsedInAnnotation etc)
	* has two implementations TypedCompileTimeConstant containing a constant value
		and IntegerValueConstant which does not have exact type
	* can be converted to ConstantValue

Adjustt usages to use ConstantValue if flags are not needed
Add tests for some uncovered cases

compiler/testData/diagnostics/tests/annotations/WrongAnnotationArgsOnObject.txt

@@ -11,7 +11,7 @@ package test {
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }
 
-    test.BadAnnotation(s = IntegerValueType(1)) internal object SomeObject {
+    test.BadAnnotation(s = 1) internal object SomeObject {
         private constructor SomeObject()
         public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int