compose-compiler: fix HiddenFromObjC name clash

fixes JetBrains/compose-multiplatform#4777
`fqName` were used before, but they aren't unique
for example, we can have class, several functions and property
with the same fqName, so descriptors should be used
(they are guaranteed to be unique for current compilation set/module)

Test: tested against Compose Multiplatform testsuite

Change-Id: I44a56c52267e548639a08a949b3e9447422b0533
Signed-off-by: Pavel Shishkin <[email protected]>

Author: shishkin-pavel

compose/compiler/compiler-hosted/src/main/java/androidx/compose/compiler/plugins/kotlin/lower/hiddenfromobjc/HideFromObjCDeclarationsSet.kt

@@ -21,8 +21,6 @@ import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
 import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.declarations.IrProperty
-import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
 
 /**
  * Represents a set of declarations that should have
@@ -42,21 +40,21 @@ import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
 @OptIn(ObsoleteDescriptorBasedAPI::class)
 class HideFromObjCDeclarationsSet {
 
-    private val set = mutableSetOf<FqName>()
+    private val declarationsSet = mutableSetOf<DeclarationDescriptor>()
 
     fun add(function: IrFunction) {
-        set.add(function.descriptor.fqNameSafe)
+        declarationsSet.add(function.descriptor)
     }
 
     fun add(property: IrProperty) {
-        set.add(property.descriptor.fqNameSafe)
+        declarationsSet.add(property.descriptor)
     }
 
     fun add(cls: IrClass) {
-        set.add(cls.descriptor.fqNameSafe)
+        declarationsSet.add(cls.descriptor)
     }
 
-    operator fun contains(item: DeclarationDescriptor): Boolean {
-        return set.contains(item.fqNameSafe)
+    operator fun contains(descriptor: DeclarationDescriptor): Boolean {
+        return declarationsSet.contains(descriptor)
     }
 }