Don't use the graph's dex file when printing HInvoke.

It's not the right dex file if the invokes come from inlined
methods.

Test: manual
Change-Id: I4e3fb35e2bddc67510c39e12075c9a5ca0498a3a
diff --git a/compiler/optimizing/graph_visualizer.cc b/compiler/optimizing/graph_visualizer.cc
index 7dcf244..a20ec3c 100644
--- a/compiler/optimizing/graph_visualizer.cc
+++ b/compiler/optimizing/graph_visualizer.cc
@@ -451,8 +451,16 @@
 
   void VisitInvoke(HInvoke* invoke) OVERRIDE {
     StartAttributeStream("dex_file_index") << invoke->GetDexMethodIndex();
-    StartAttributeStream("method_name") << GetGraph()->GetDexFile().PrettyMethod(
-        invoke->GetDexMethodIndex(), /* with_signature */ false);
+    ArtMethod* method = invoke->GetResolvedMethod();
+    // We don't print signatures, which conflict with c1visualizer format.
+    static constexpr bool kWithSignature = false;
+    // Note that we can only use the graph's dex file for the unresolved case. The
+    // other invokes might be coming from inlined methods.
+    ScopedObjectAccess soa(Thread::Current());
+    std::string method_name = (method == nullptr)
+        ? GetGraph()->GetDexFile().PrettyMethod(invoke->GetDexMethodIndex(), kWithSignature)
+        : method->PrettyMethod(kWithSignature);
+    StartAttributeStream("method_name") << method_name;
   }
 
   void VisitInvokeUnresolved(HInvokeUnresolved* invoke) OVERRIDE {