Use a different map to distinguish eval contexts

src/interpreter/bytecode-array-builder.cc

Index: src/interpreter/bytecode-array-builder.cc
diff --git a/src/interpreter/bytecode-array-builder.cc b/src/interpreter/bytecode-array-builder.cc
index dfa395095abaf72da5407a415b7af5edb58b1410..5dfe33932f393224d2c00fb60a785fe63b088929 100644
--- a/src/interpreter/bytecode-array-builder.cc
+++ b/src/interpreter/bytecode-array-builder.cc
@@ -476,6 +476,11 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::CreateFunctionContext(int slots) {
   return *this;
 }
 
+BytecodeArrayBuilder& BytecodeArrayBuilder::CreateEvalContext(int slots) {
+  Output(Bytecode::kCreateEvalContext, UnsignedOperand(slots));
+  return *this;
+}
+
 BytecodeArrayBuilder& BytecodeArrayBuilder::CreateWithContext(
     Register object, Handle<ScopeInfo> scope_info) {
   size_t scope_info_index = GetConstantPoolEntry(scope_info);