Minor: introduce 'lazyTerminations' in Call chain --> Sequence

Related to KT-27104

idea/src/org/jetbrains/kotlin/idea/inspections/collections/ConvertCallChainIntoSequenceInspection.kt

@@ -173,7 +173,7 @@ private fun KtQualifiedExpression.collectCallExpression(context: BindingContext)
         .dropWhile { !it.isTransformationOrTermination(context) }
         .takeWhile { it.isTransformationOrTermination(context) && !it.hasReturn() }
         .toList()
-        .dropLastWhile { it.calleeExpression?.text == "groupingBy" }
+        .dropLastWhile { it.isLazyTermination(context) }
     if (transformationCalls.size < 2) return emptyList()
 
     return transformationCalls
@@ -201,6 +201,11 @@ private fun KtCallExpression.isTermination(context: BindingContext): Boolean {
     return fqName == getResolvedCall(context)?.resultingDescriptor?.fqNameSafe
 }
 
+private fun KtCallExpression.isLazyTermination(context: BindingContext): Boolean {
+    val fqName = lazyTerminations[calleeExpression?.text] ?: return false
+    return fqName == getResolvedCall(context)?.resultingDescriptor?.fqNameSafe
+}
+
 private val transformations = listOf(
     "chunked",
     "distinct",
@@ -302,4 +307,6 @@ private val terminations = listOf(
     it to FqName("$pkg.$it")
 }
 
+private val lazyTerminations = terminations.filter { (key, _) -> key == "groupingBy" }
+
 private val transformationAndTerminations = transformations + terminations