[ast] Annotate CallRuntime ast node

src/ast/ast.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast/ast.h"
 
 #include <cmath>  // For isfinite.
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 11 matching lines @@
 #include "src/type-info.h"
 
 namespace v8 {
 namespace internal {
 
 // ----------------------------------------------------------------------------
 // Implementation of other node functionality.
 
 #ifdef DEBUG
 
+static const char* NameForNativeContextIntrinsicIndex(uint32_t idx) {
+  switch (idx) {
+#define NATIVE_CONTEXT_FIELDS_IDX(NAME, Type, name) \
+  case Context::NAME:                               \
+    return #name;
+
+    NATIVE_CONTEXT_FIELDS(NATIVE_CONTEXT_FIELDS_IDX)
+
+    default:
+      break;
+  }
+
+  return "UnknownIntrinsicIndex";
+}
+
 void AstNode::Print() { Print(Isolate::Current()); }
 
 void AstNode::Print(Isolate* isolate) {
   AstPrinter::PrintOut(isolate, this);
 }
 
 
 #endif  // DEBUG
 
 #define RETURN_NODE(Node) \
@@ skipping 1015 matching lines @@
 
 
 // static
 bool Literal::Match(void* literal1, void* literal2) {
   const AstValue* x = static_cast<Literal*>(literal1)->raw_value();
   const AstValue* y = static_cast<Literal*>(literal2)->raw_value();
   return (x->IsString() && y->IsString() && x->AsString() == y->AsString()) ||
          (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber());
 }
 
+const char* CallRuntime::debug_name() {
+#ifdef DEBUG
+  return NameForNativeContextIntrinsicIndex(context_index_);

[caitp, 2017/01/29 05:32:33]

Hey, sorry I didn't catch this sooner. This makes intrinsics not installed on
the native context print the useless "UnknownIntrinsicIndex".

This needs a `is_jsruntime()` predicate like in the release build case below

+#else
+  return is_jsruntime() ? "(context function)" : function_->name;
+#endif  // DEBUG
+}
+
 }  // namespace internal
 }  // namespace v8