[interpreter] Add CreateCatchContext bytecode

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index ba1c701c556977e0f5a4d8a95d1fc2d733ff5470..a7e14f3fa18f6dd4bd7a67223830f788a22cfe83 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -1821,6 +1821,22 @@ void Interpreter::DoCreateFunctionContext(InterpreterAssembler* assembler) {
   __ Dispatch();
 }
 
+// CreateCatchContext <exception> <index>
+//
+// Creates a new context for a catch block with the |exception| in register and
+// the variable name at |index| for and the closure in the accumulator.

[Michael Starzinger, 2016/08/18 15:00:42]

nit: Stray "for" in comment.

[klaasb, 2016/08/18 15:21:42]

Done.

+void Interpreter::DoCreateCatchContext(InterpreterAssembler* assembler) {
+  Node* exception_reg = __ BytecodeOperandReg(0);
+  Node* exception = __ LoadRegister(exception_reg);
+  Node* index = __ BytecodeOperandIdx(1);
+  Node* name = __ LoadConstantPoolEntry(index);
+  Node* closure = __ GetAccumulator();
+  Node* context = __ GetContext();
+  __ SetAccumulator(__ CallRuntime(Runtime::kPushCatchContext, context, name,
+                                   exception, closure));
+  __ Dispatch();
+}
+
 // CreateMappedArguments
 //
 // Creates a new mapped arguments object.