Revert "Correct conditions in equality check to prepare for YAML"

Don't see any possibility to use Kaml in the nearest future.
Better to use operation with less cost first

This reverts commit f3339d8.

json-schema-validator/src/commonMain/kotlin/io/github/optimumcode/json/schema/internal/util/ElementEqualityUtil.kt

@@ -41,12 +41,15 @@ internal fun areEqualPrimitives(
   if (first.isString != second.isString) {
     return false
   }
-  return when {
-    first.isNumber && second.isNumber -> compareAsNumbers(first, second)
-    // probably content should be compared ignoring the case - YAML allows different values for boolean
-    first.isBoolean && second.isBoolean -> first.content == second.content
-    first.isString -> first.content == second.content
-    else -> false
+  return if (first.isString) {
+    first.content == second.content
+  } else {
+    when {
+      first.isNull || second.isNull -> false
+      // probably content should be compared ignoring the case - YAML allows different values for boolean
+      first.isBoolean || second.isBoolean -> first.content == second.content
+      else -> compareAsNumbers(first, second)
+    }
   }
 }
 

json-schema-validator/src/commonMain/kotlin/io/github/optimumcode/json/schema/internal/util/NumberParts.kt

@@ -9,12 +9,13 @@ internal data class NumberParts(
   val precision: Int,
 )
 
-internal fun parseNumberParts(element: PrimitiveElement): NumberParts? =
-  if (element.isNumber) {
-    numberParts(element)
-  } else {
+internal fun parseNumberParts(element: PrimitiveElement): NumberParts? {
+  return if (element.isString || element.isNull || element.isBoolean) {
     null
+  } else {
+    numberParts(element)
   }
+}
 
 private const val E_SMALL_CHAR: Char = 'e'
 private const val E_BIG_CHAR: Char = 'E'