Rename: Do not suggest type-based names for functions with primitive return types

#KT-14234 Fixed

ChangeLog.md

@@ -285,6 +285,7 @@ These artifacts include extensions for the types available in the latter JDKs, s
 - Extract Function: Support implicit abnormal exits via Nothing-typed expressions
 - [`KT-14285`](https://youtrack.jetbrains.com/issue/KT-14285) Rename: Forbid on backing field reference
 - [`KT-14240`](https://youtrack.jetbrains.com/issue/KT-14240) Introduce Variable: Do not replace assignment left-hand sides
+- [`KT-14234`](https://youtrack.jetbrains.com/issue/KT-14234) Rename: Do not suggest type-based names for functions with primitive return types
 
 ##### New features
 

idea/idea-core/src/org/jetbrains/kotlin/idea/core/KotlinNameSuggestionProvider.kt

@@ -23,11 +23,14 @@ import com.intellij.psi.codeStyle.SuggestedNameInfo
 import com.intellij.psi.statistics.JavaStatisticsManager
 import com.intellij.refactoring.rename.NameSuggestionProvider
 import org.jetbrains.kotlin.asJava.toLightElements
+import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptor
 import org.jetbrains.kotlin.psi.KtCallableDeclaration
 import org.jetbrains.kotlin.psi.KtParameter
 import org.jetbrains.kotlin.psi.KtProperty
+import org.jetbrains.kotlin.resolve.descriptorUtil.builtIns
+import org.jetbrains.kotlin.types.typeUtil.isUnit
 import org.jetbrains.kotlin.utils.SmartList
 import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstanceOrNull
 
@@ -48,8 +51,9 @@ class KotlinNameSuggestionProvider : NameSuggestionProvider {
                     this += KotlinNameSuggester.getCamelNames(name!!, validator, name.first().isLowerCase())
                 }
 
-                val type = (element.resolveToDescriptor() as CallableDescriptor).returnType
-                if (type != null) {
+                val callableDescriptor = element.resolveToDescriptor() as CallableDescriptor
+                val type = callableDescriptor.returnType
+                if (type != null && !type.isUnit() && !KotlinBuiltIns.isPrimitiveType(type)) {
                     this += KotlinNameSuggester.suggestNamesByType(type, validator)
                 }
             }