deps: patch V8 to 7.8.279.10

MylesBorins · MylesBorins · commit ddfc3b0a7646 · 2019-10-07T03:20:25.000-04:00
Refs: v8/v8@7.8.279.9...7.8.279.10 PR-URL: #29694 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
diff --git a/deps/v8/include/v8-version.h b/deps/v8/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 7
 #define V8_MINOR_VERSION 8
 #define V8_BUILD_NUMBER 279
-#define V8_PATCH_LEVEL 9
+#define V8_PATCH_LEVEL 10
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)
diff --git a/deps/v8/src/codegen/compiler.cc b/deps/v8/src/codegen/compiler.cc
@@ -2234,18 +2234,22 @@ Handle<SharedFunctionInfo> Compiler::GetSharedFunctionInfo(
     // this function, replace the uncompiled data with one that includes it.
     if (literal->produced_preparse_data() != nullptr &&
         existing->HasUncompiledDataWithoutPreparseData()) {
-      DCHECK(literal->inferred_name()->Equals(
-          existing->uncompiled_data().inferred_name()));
+      Handle<UncompiledData> existing_uncompiled_data =
+          handle(existing->uncompiled_data(), isolate);
       DCHECK_EQ(literal->start_position(),
-                existing->uncompiled_data().start_position());
+                existing_uncompiled_data->start_position());
       DCHECK_EQ(literal->end_position(),
-                existing->uncompiled_data().end_position());
+                existing_uncompiled_data->end_position());
+      // Use existing uncompiled data's inferred name as it may be more
+      // accurate than the literal we preparsed.
+      Handle<String> inferred_name =
+          handle(existing_uncompiled_data->inferred_name(), isolate);
       Handle<PreparseData> preparse_data =
           literal->produced_preparse_data()->Serialize(isolate);
       Handle<UncompiledData> new_uncompiled_data =
           isolate->factory()->NewUncompiledDataWithPreparseData(
-              literal->inferred_name(), literal->start_position(),
-              literal->end_position(), preparse_data);
+              inferred_name, existing_uncompiled_data->start_position(),
+              existing_uncompiled_data->end_position(), preparse_data);
       existing->set_uncompiled_data(*new_uncompiled_data);
     }
     return existing;
