Fix assertion caused by wrong equality of DescriptorBasedFunctionHandleForJvm

In case of the same class defined in different modules they contain
different descriptors instances in their scope that might lead
to failing assertion in findConcreteSuperDeclaration
because there are overridden from different modules

It might happen even in the compiler because of different built-in modules
defined for sources-module and for dependencies' one

^KT-29320 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/JvmBridgesImpl.kt

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.codegen
 import org.jetbrains.kotlin.backend.common.bridges.*
 import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
 import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.jvm.annotations.hasJvmDefaultAnnotation
@@ -31,13 +32,28 @@ class DescriptorBasedFunctionHandleForJvm(
     override val mayBeUsedAsSuperImplementation: Boolean =
         super.mayBeUsedAsSuperImplementation || descriptor.isJvmDefaultOrPlatformDependent()
 
+    private val asmMethod by lazy(LazyThreadSafetyMode.NONE) {
+        state.typeMapper.mapAsmMethod(descriptor)
+    }
+
     override val isDeclaration: Boolean =
         descriptor.kind.isReal || needToGenerateDelegationToDefaultImpls(descriptor)
 
     override val mightBeIncorrectCode: Boolean
         get() = state.classBuilderMode.mightBeIncorrectCode
+
+    override fun hashCode(): Int = descriptor.containerEntityForEqualityAndHashCode().hashCode() + 31 * asmMethod.hashCode()
+    override fun equals(other: Any?): Boolean {
+        if (other !is DescriptorBasedFunctionHandleForJvm) return false
+
+        return asmMethod == other.asmMethod &&
+                descriptor.containerEntityForEqualityAndHashCode() == other.descriptor.containerEntityForEqualityAndHashCode()
+    }
 }
 
+private fun FunctionDescriptor.containerEntityForEqualityAndHashCode(): Any =
+    (containingDeclaration as? ClassDescriptor)?.typeConstructor ?: containingDeclaration
+
 private fun CallableMemberDescriptor.isJvmDefaultOrPlatformDependent() =
     hasJvmDefaultAnnotation() || hasPlatformDependentAnnotation()