Display call site data for functions.

runtime/vm/parser.h

Index: runtime/vm/parser.h
diff --git a/runtime/vm/parser.h b/runtime/vm/parser.h
index 0e3d6949c19301dfb3b068895e26066d4cecaddf..41eaa765a2b7770e7d2c0111f5791945f1a4b899 100644
--- a/runtime/vm/parser.h
+++ b/runtime/vm/parser.h
@@ -699,7 +699,9 @@ class Parser : public ValueObject {
   AstNode* ParseStaticCall(const Class& cls,
                            const String& method_name,
                            intptr_t ident_pos);
-  AstNode* ParseInstanceCall(AstNode* receiver, const String& method_name);
+  AstNode* ParseInstanceCall(AstNode* receiver,
+                             const String& method_name,
+                             intptr_t ident_pos);
   AstNode* ParseClosureCall(AstNode* closure);
   AstNode* GenerateStaticFieldLookup(const Field& field,
                                      intptr_t ident_pos);