hasSynthesizedParameterNames() pulled up into CallableDescriptor

core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/JavaCallableMemberDescriptor.java

@@ -19,5 +19,4 @@ package org.jetbrains.jet.lang.resolve.java.descriptor;
 import org.jetbrains.jet.lang.descriptors.CallableMemberDescriptor;
 
 public interface JavaCallableMemberDescriptor extends CallableMemberDescriptor {
-    boolean hasSynthesizedParameterNames();
 }

core/descriptors/src/org/jetbrains/jet/lang/descriptors/CallableDescriptor.java

@@ -51,8 +51,19 @@ public interface CallableDescriptor extends DeclarationDescriptorWithVisibility,
     @NotNull
     List<ValueParameterDescriptor> getValueParameters();
 
+    /**
+     * Kotlin functions always have stable parameter names that can be reliably used when calling them with named arguments.
+     * Functions loaded from platform definitions (e.g. Java binaries or JS) may have unstable parameter names that vary from
+     * one platform installation to another. These names can not be used reliably for calls with named arguments.
+     */
     boolean hasStableParameterNames();
 
+    /**
+     * Sometimes parameter names are not available at all (e.g. Java binaries with not enough debug information).
+     * In this case, getName() returns synthetic names such as "p0", "p1" etc.
+     */
+    boolean hasSynthesizedParameterNames();
+
     // Workaround for KT-4609 Wildcard types (super/extends) shouldn't be loaded as nullable
     @KotlinSignature("fun getOverriddenDescriptors(): Set<out CallableDescriptor>")
     @NotNull

core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/AbstractReceiverParameterDescriptor.java

@@ -87,6 +87,11 @@ public abstract class AbstractReceiverParameterDescriptor extends DeclarationDes
         return false;
     }
 
+    @Override
+    public boolean hasSynthesizedParameterNames() {
+        return false;
+    }
+
     @NotNull
     @Override
     public Set<? extends CallableDescriptor> getOverriddenDescriptors() {

core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/FunctionDescriptorImpl.java

@@ -159,6 +159,11 @@ public abstract class FunctionDescriptorImpl extends DeclarationDescriptorNonRoo
         return true;
     }
 
+    @Override
+    public boolean hasSynthesizedParameterNames() {
+        return false;
+    }
+
     @Override
     public JetType getReturnType() {
         return unsubstitutedReturnType;

core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/PropertyAccessorDescriptorImpl.java

@@ -89,6 +89,11 @@ public abstract class PropertyAccessorDescriptorImpl extends DeclarationDescript
         return false;
     }
 
+    @Override
+    public boolean hasSynthesizedParameterNames() {
+        return false;
+    }
+
     @NotNull
     @Override
     public Modality getModality() {

core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/VariableDescriptorImpl.java

@@ -85,6 +85,11 @@ public abstract class VariableDescriptorImpl extends DeclarationDescriptorNonRoo
         return false;
     }
 
+    @Override
+    public boolean hasSynthesizedParameterNames() {
+        return false;
+    }
+
     @NotNull
     @Override
     public Set<? extends CallableDescriptor> getOverriddenDescriptors() {