Remove soft keyword coroutine & isCoroutine from ValueParameterDescriptor.

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/IrBuiltIns.kt

@@ -75,7 +75,7 @@ class IrBuiltIns(val builtIns: KotlinBuiltIns) {
 
                 val valueParameterName = ValueParameterDescriptorImpl(
                         this, null, 0, Annotations.EMPTY, Name.identifier("name"), builtIns.stringType,
-                        false, false, false, false, null, org.jetbrains.kotlin.descriptors.SourceElement.NO_SOURCE
+                        false, false, false, null, org.jetbrains.kotlin.descriptors.SourceElement.NO_SOURCE
                 )
 
                 val returnType = KotlinTypeFactory.simpleType(Annotations.EMPTY, typeParameterT.typeConstructor, listOf(), false)

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/IrBuiltinFunctionDescriptor.kt

@@ -98,7 +98,6 @@ class IrBuiltinValueParameterDescriptorImpl(
     override fun declaresDefaultValue(): Boolean = false
     override fun getOriginal(): ValueParameterDescriptor = this
     override fun getOverriddenDescriptors(): Collection<ValueParameterDescriptor> = emptyList()
-    override val isCoroutine: Boolean get() = false
     override val isCrossinline: Boolean get() = false
     override val isNoinline: Boolean get() = false
     override val varargElementType: KotlinType? get() = null