[compiler] Deprecate CompilationInfo::has_context predicate.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 7977bd04d3da23c6ef018fd343906bd241a27e86..997b3a6e19ebceef93d6abfaa6a2828ba44f023e 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -60,7 +60,8 @@ PARSE_INFO_GETTER_WITH_DEFAULT(LanguageMode, language_mode, STRICT)
 PARSE_INFO_GETTER_WITH_DEFAULT(Handle<JSFunction>, closure,
                                Handle<JSFunction>::null())
 PARSE_INFO_GETTER_WITH_DEFAULT(Scope*, scope, nullptr)
-PARSE_INFO_GETTER(Handle<Context>, context)
+PARSE_INFO_GETTER_WITH_DEFAULT(Handle<Context>, context,
+                               Handle<Context>::null())
 PARSE_INFO_GETTER(Handle<SharedFunctionInfo>, shared_info)
 
 #undef PARSE_INFO_GETTER
@@ -110,11 +111,6 @@ bool CompilationInfo::has_shared_info() const {
 }
 
 
-bool CompilationInfo::has_context() const {
-  return parse_info_ && !parse_info_->context().is_null();
-}
-
-
 CompilationInfo::CompilationInfo(ParseInfo* parse_info)
     : CompilationInfo(parse_info, nullptr, Code::ComputeFlags(Code::FUNCTION),
                       BASE, parse_info->isolate(), parse_info->zone()) {