deps: cherry-pick c3458a8 from upstream V8

Original commit message:

    [parser] Add new FunctionNameInferrer state before parsing param

    Create new state before parsing FormalParameter because we don't
    want to use any of the parameters as an inferred function name.

    Previously the stacktrace was:
      test.js:3: Error: boom
          throw new Error('boom');
          ^
      Error: boom
          at param (test.js:3:11)
          at test.js:4:5
          at test.js:6:3

    The stacktrace with this patch:
      test.js:3: Error: boom
          throw new Error('boom');
          ^
      Error: boom
          at test.js:3:11
          at test.js:4:5
          at test.js:6:3

    Bug: v8:6822, v8:6513
    Change-Id: Ifbadc660fc4e85248af405acd67c025f11662bd4
    Reviewed-on: https://chromium-review.googlesource.com/742657
    Reviewed-by: Adam Klein <adamk@chromium.org>
    Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#49042}

PR-URL: #18060
Backport-PR-URL: #16413
Fixes: #15386
Refs: v8/v8@c3458a8
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: targos

deps/v8/include/v8-version.h

@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 6
 #define V8_MINOR_VERSION 2
 #define V8_BUILD_NUMBER 414
-#define V8_PATCH_LEVEL 48
+#define V8_PATCH_LEVEL 49
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8/src/parsing/parser-base.h

@@ -3634,6 +3634,7 @@ void ParserBase<Impl>::ParseFormalParameter(FormalParametersT* parameters,
   //   BindingElement[?Yield, ?GeneratorParameter]
   bool is_rest = parameters->has_rest;
 
+  FuncNameInferrer::State fni_state(fni_);
   ExpressionT pattern = ParsePrimaryExpression(CHECK_OK_CUSTOM(Void));
   ValidateBindingPattern(CHECK_OK_CUSTOM(Void));
 

deps/v8/test/message/fail/func-name-inferrer-arg-1.js

@@ -0,0 +1,10 @@
+// Copyright 2017 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.
+
+(function (param = function() { throw new Error('boom') }) {
+  (() => {
+    param();
+  })();
+
+})();

deps/v8/test/message/fail/func-name-inferrer-arg-1.out

@@ -0,0 +1,8 @@
+*%(basename)s:5: Error: boom
+(function (param = function() { throw new Error('boom') }) {
+                                ^
+Error: boom
+    at param (*%(basename)s:5:39)
+    at *%(basename)s:7:5
+    at *%(basename)s:8:5
+    at *%(basename)s:10:3

deps/v8/test/message/fail/func-name-inferrer-arg.js

@@ -0,0 +1,10 @@
+// Copyright 2017 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.
+
+(function (param) {
+  (() => {
+    throw new Error('boom');
+  })();
+
+})();

deps/v8/test/message/fail/func-name-inferrer-arg.out

@@ -0,0 +1,7 @@
+*%(basename)s:7: Error: boom
+    throw new Error('boom');
+    ^
+Error: boom
+    at *%(basename)s:7:11
+    at *%(basename)s:8:5
+    at *%(basename)s:10:3