Complete type inference for nested calls

inside non resolved invocation

idea/src/org/jetbrains/jet/plugin/completion/smart/SmartCompetionUtil.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2010-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.plugin.completion.smart
+
+import org.jetbrains.jet.lang.descriptors.CallableDescriptor
+import org.jetbrains.jet.lang.resolve.calls.results.OverloadResolutionResults
+import org.jetbrains.jet.lang.resolve.calls.model.ResolvedCall
+import org.jetbrains.jet.lang.resolve.calls.util.noErrorsInValueArguments
+import org.jetbrains.jet.lang.resolve.calls.util.hasUnmappedParameters
+
+
+fun <D : CallableDescriptor> OverloadResolutionResults<D>.getCandidatesForCompletion(): Collection<ResolvedCall<D>> {
+    return getAllCandidates()!!.filter { resolvedCall ->
+        resolvedCall.noErrorsInValueArguments() && resolvedCall.hasUnmappedParameters()
+    }
+}