[Interpreter] Adds delete operator to interpreter.

test/unittests/interpreter/bytecode-array-builder-unittest.cc

Index: test/unittests/interpreter/bytecode-array-builder-unittest.cc
diff --git a/test/unittests/interpreter/bytecode-array-builder-unittest.cc b/test/unittests/interpreter/bytecode-array-builder-unittest.cc
index 251f2975b68869db36b8d6b7db9d05a5e3b3f64a..49f12d075816251ea5695449b3b796c0514bbc5b 100644
--- a/test/unittests/interpreter/bytecode-array-builder-unittest.cc
+++ b/test/unittests/interpreter/bytecode-array-builder-unittest.cc
@@ -94,7 +94,10 @@ TEST_F(BytecodeArrayBuilderTest, AllBytecodesGenerated) {
       .BinaryOperation(Token::Value::SHR, reg, Strength::WEAK);
 
   // Emit unary operator invocations.
-  builder.LogicalNot().TypeOf();
+  builder.LogicalNot()
+      .TypeOf()
+      .Delete(reg, LanguageMode::SLOPPY)

[rmcilroy, 2015/10/21 14:52:54]

nit - make this a different section (since the bytecodes aren't really unary
operators even athough the delete operator is.

[mythria, 2015/10/23 14:48:01]

Done.

+      .Delete(reg, LanguageMode::STRICT);
 
   // Emit new.
   builder.New(reg, reg, 0);