ART: Add Invokes to DecodedInstruction

Add a method Invokes to test for the kInvoke flag.
Also moved IsPseudoMirOp to DecodedInstruction to use it for the various
  querry methods.

Change-Id: I59a2056b7b802b8393fa2b0d977304d252b38c89
Signed-off-by: Jean Christophe Beyler <jean.christophe.beyler@intel.com>
diff --git a/compiler/dex/quick/x86/utility_x86.cc b/compiler/dex/quick/x86/utility_x86.cc
index 657160f..5c7c91b 100644
--- a/compiler/dex/quick/x86/utility_x86.cc
+++ b/compiler/dex/quick/x86/utility_x86.cc
@@ -917,7 +917,7 @@
 
   for (MIR *mir = bb->first_mir_insn; mir != NULL; mir = mir->next) {
     int opcode = mir->dalvikInsn.opcode;
-    if (MIRGraph::IsPseudoMirOp(opcode)) {
+    if (MIR::DecodedInstruction::IsPseudoMirOp(opcode)) {
       AnalyzeExtendedMIR(opcode, bb, mir);
     } else {
       AnalyzeMIR(opcode, bb, mir);