Fix tests and js

Author: JavierSegoviaCordoba

kotlin-stdlib/api/kotlin-stdlib.api

@@ -158,7 +158,9 @@ public final class com/javiersc/kotlin/stdlib/CollectionsKt {
 
 public final class com/javiersc/kotlin/stdlib/StringsKt {
 	public static final fun isNotNullNorBlank (Ljava/lang/CharSequence;)Z
+	public static final fun isNotNullNorBlank (Ljava/lang/String;)Z
 	public static final fun isNotNullNorEmpty (Ljava/lang/CharSequence;)Z
+	public static final fun isNotNullNorEmpty (Ljava/lang/String;)Z
 	public static final fun remove (Ljava/lang/String;Ljava/lang/String;Z)Ljava/lang/String;
 	public static synthetic fun remove$default (Ljava/lang/String;Ljava/lang/String;ZILjava/lang/Object;)Ljava/lang/String;
 }

kotlin-stdlib/commonMain/kotlin/Strings.kt

@@ -22,3 +22,17 @@ public inline fun CharSequence?.isNotNullNorEmpty(): Boolean {
 
     return this != null && isNotEmpty()
 }
+
+@OptIn(ExperimentalContracts::class)
+public inline fun String?.isNotNullNorBlank(): Boolean {
+    contract { returns(false) implies (this@isNotNullNorBlank == null) }
+
+    return this != null && isNotBlank()
+}
+
+@OptIn(ExperimentalContracts::class)
+public inline fun String?.isNotNullNorEmpty(): Boolean {
+    contract { returns(false) implies (this@isNotNullNorEmpty == null) }
+
+    return this != null && isNotEmpty()
+}

kotlin-stdlib/commonTest/kotlin/CollectionsTest.kt

@@ -26,7 +26,7 @@ class CollectionsTest {
 
     @Test
     fun collection_fifth() {
-        assertTrue { numbers.forth() == 5 }
+        assertTrue { numbers.fifth() == 5 }
     }
 
     @Test