Remove use of FunctionSignature et al from call_structure.dart

pkg/compiler/lib/src/inferrer/builder.dart

Index: pkg/compiler/lib/src/inferrer/builder.dart
diff --git a/pkg/compiler/lib/src/inferrer/builder.dart b/pkg/compiler/lib/src/inferrer/builder.dart
index ae3c1c62ad0da8aafb68435c9941e77a76afd0f7..add6babf74a74fbf539fbd3978dcf5fe415eb628 100644
--- a/pkg/compiler/lib/src/inferrer/builder.dart
+++ b/pkg/compiler/lib/src/inferrer/builder.dart
@@ -2316,8 +2316,7 @@ class ElementGraphBuilder extends ast.Visitor<TypeInformation>
     // In erroneous code the number of arguments in the selector might not
     // match the function element.
     // TODO(polux): return nonNullEmpty and check it doesn'TypeInformation break anything
-    if (target.isMalformed ||
-        !callStructure.signatureApplies(target.functionSignature)) {
+    if (target.isMalformed || !callStructure.signatureApplies(target.type)) {
       return types.dynamicType;
     }