[log] Add predictable logging

Use monotonic times for logging with --predictable.

Bug: v8:10937, v8:10966, v8:10668
Change-Id: I3d4f0d48375f6f5d9fa375cf5393ff3afee7c0b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2465829
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70474}

src/logging/log.h

@@ -314,6 +314,8 @@ class Logger : public CodeEventListener {
   // each script is logged only once.
   bool EnsureLogScriptSource(Script script);
 
+  int64_t Time();
+
   Isolate* isolate_;
 
   // The sampler used by the profiler and the sliding state window.

test/mjsunit/mjsunit.status

@@ -984,9 +984,6 @@
 
   # BUG(v8:9975).
   'es6/typedarray-copywithin': [SKIP],
-
-  # BUG(https://crbug.com/v8/10966)
-  'tools/log_two_byte': [SKIP],
 }],  # 'predictable == True'
 
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