Minor. Move unwrapping of FunctionImportedFromObject

It should not affect the semantics, because mapSignatureWithCustomParameters
can only be called with FunctionImportedFromObject from mapSignature.

At the same time it's very nice to have all of these kinds
of custom unwrapping in the same place

Author: dzharkov

compiler/backend/src/org/jetbrains/kotlin/codegen/state/KotlinTypeMapper.java

@@ -1034,6 +1034,10 @@ private JvmMethodGenericSignature mapSignature(@NotNull FunctionDescriptor f, @N
             return mapSignature(((TypeAliasConstructorDescriptor) f).getUnderlyingConstructorDescriptor(), kind, skipGenericSignature);
         }
 
+        if (f instanceof FunctionImportedFromObject) {
+            return mapSignature(((FunctionImportedFromObject) f).getCallableFromObject(), kind, skipGenericSignature);
+        }
+
         if (CoroutineCodegenUtilKt.isSuspendFunctionNotSuspensionView(f)) {
             return mapSignature(CoroutineCodegenUtilKt.getOrCreateJvmSuspendFunctionView(f), kind, skipGenericSignature);
         }
@@ -1052,10 +1056,6 @@ public JvmMethodGenericSignature mapSignatureWithCustomParameters(
             @NotNull List<ValueParameterDescriptor> valueParameters,
             boolean skipGenericSignature
     ) {
-        if (f instanceof FunctionImportedFromObject) {
-            return mapSignature(((FunctionImportedFromObject) f).getCallableFromObject(), kind, skipGenericSignature);
-        }
-
         checkOwnerCompatibility(f);
 
         JvmSignatureWriter sw = skipGenericSignature || f instanceof AccessorForCallableDescriptor