[Interpreter] Add support for for count operations.

src/compiler/bytecode-graph-builder.cc

Index: src/compiler/bytecode-graph-builder.cc
diff --git a/src/compiler/bytecode-graph-builder.cc b/src/compiler/bytecode-graph-builder.cc
index 9df0f1e7af8c971094312172650a6009360a4bf8..0a544ed6f964bf369422dd1bb7ba1e2e335fb5a8 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -476,6 +476,18 @@ void BytecodeGraphBuilder::VisitShiftRightLogical(
 }
 
 
+void BytecodeGraphBuilder::VisitInc(
+    const interpreter::BytecodeArrayIterator& iterator) {
+  UNIMPLEMENTED();
+}
+
+
+void BytecodeGraphBuilder::VisitDec(
+    const interpreter::BytecodeArrayIterator& iterator) {
+  UNIMPLEMENTED();
+}
+
+
 void BytecodeGraphBuilder::VisitLogicalNot(
     const interpreter::BytecodeArrayIterator& iterator) {
   UNIMPLEMENTED();
@@ -560,6 +572,12 @@ void BytecodeGraphBuilder::VisitToName(
 }
 
 
+void BytecodeGraphBuilder::VisitToNumber(
+    const interpreter::BytecodeArrayIterator& iterator) {
+  UNIMPLEMENTED();
+}
+
+
 void BytecodeGraphBuilder::VisitJump(
     const interpreter::BytecodeArrayIterator& iterator) {
   UNIMPLEMENTED();