[Compiler] Put background compilation of eager inner functions behind a flag.

src/flag-definitions.h

 // 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.
 
 // This file defines all of the flags.  It is separated into different section,
 // for Debug, Release, Logging and Profiling, etc.  To add a new flag, find the
 // correct section, and use one of the DEFINE_ macros, without a trailing ';'.
 //
 // This include does not have a guard, because it is a template-style include,
 // which can be included multiple times in different modes.  It expects to have
@@ skipping 661 matching lines @@
 DEFINE_INT(max_opt_count, 10,
            "maximum number of optimization attempts before giving up.")
 
 // compilation-cache.cc
 DEFINE_BOOL(compilation_cache, true, "enable compilation cache")
 
 DEFINE_BOOL(cache_prototype_transitions, true, "cache prototype transitions")
 
 // compiler-dispatcher.cc
 DEFINE_BOOL(compiler_dispatcher, false, "enable compiler dispatcher")
+DEFINE_BOOL(compiler_dispatcher_eager_inner, false,
+            "enable background compilation of eager inner functions")
 DEFINE_BOOL(trace_compiler_dispatcher, false,
             "trace compiler dispatcher activity")
 
 // compiler-dispatcher-job.cc
 DEFINE_BOOL(
     trace_compiler_dispatcher_jobs, false,
     "trace progress of individual jobs managed by the compiler dispatcher")
 
 // cpu-profiler.cc
 DEFINE_INT(cpu_profiler_sampling_interval, 1000,
@@ skipping 601 matching lines @@
 #undef DEFINE_ALIAS_FLOAT
 #undef DEFINE_ALIAS_ARGS
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META
 #undef FLAG_MODE_DEFINE_IMPLICATIONS
 
 #undef COMMA