[IR] Optimize a few hot spots to reduce total CPU time

^KT-61121

compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinLibrary.kt

@@ -105,6 +105,9 @@ fun BaseKotlinLibrary.unresolvedDependencies(lenient: Boolean = false): List<Unr
     manifestProperties.propertyList(KLIB_PROPERTY_DEPENDS, escapeInQuotes = true)
         .map { UnresolvedLibrary(it, manifestProperties.getProperty("dependency_version_$it"), lenient = lenient) }
 
+val BaseKotlinLibrary.hasDependencies: Boolean
+    get() = !manifestProperties.getProperty(KLIB_PROPERTY_DEPENDS).isNullOrBlank()
+
 interface KotlinLibrary : BaseKotlinLibrary, MetadataLibrary, IrLibrary
 
 // TODO: should we move the below ones to Native?