[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 456e393f76845e853fd6b1fcdbfddeada5ccb681..c6e52e0afa875479cba46691b7e1dba4bbd25965 100644
--- a/src/compiler/bytecode-graph-builder.cc
+++ b/src/compiler/bytecode-graph-builder.cc
@@ -458,6 +458,18 @@ 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();
@@ -542,6 +554,12 @@ void BytecodeGraphBuilder::VisitToName(
 }
 
 
+void BytecodeGraphBuilder::VisitToNumber(
+    const interpreter::BytecodeArrayIterator& iterator) {
+  UNIMPLEMENTED();
+}
+
+
 void BytecodeGraphBuilder::VisitJump(
     const interpreter::BytecodeArrayIterator& iterator) {
   UNIMPLEMENTED();