deps: V8: cherry-pick 0dfd9ea51241

Original commit message:

    [coverage] Fix coverage with default arguments

    In the presence of default arguments, the body of the function gets
    wrapped into another block. This caused our trailing-range-after-return
    optimization to not apply, because the wrapper block had no source
    range assigned. This CL correctly assignes a source range to that block,
    which allows already present code to handle it correctly.

    Note that this is not a real coverage bug; we've just been reporting
    whitespace as uncovered. We're fixing it for consistency.

    Originally reported on github.com/bcoe/c8/issues/66

    Bug: v8:9952
    Change-Id: Iab3905f558eb99126e0dad8072d03d0a312fdcd3
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1903430
    Commit-Queue: Sigurd Schneider <[email protected]>
    Reviewed-by: Toon Verwaest <[email protected]>
    Reviewed-by: Jakob Gruber <[email protected]>
    Cr-Commit-Position: refs/heads/master@{#64836}

Refs: v8/v8@0dfd9ea

Backport-PR-URL: #31412
PR-URL: #30713
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: bcoe

common.gypi

@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.30',
+    'v8_embedder_string': '-node.31',
 
     ##### V8 defaults for Node.js #####
 

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

@@ -4087,6 +4087,7 @@ void ParserBase<Impl>::ParseFunctionBody(
       inner_body.Rewind();
       inner_body.Add(inner_block);
       inner_block->set_scope(inner_scope);
+      impl()->RecordBlockSourceRange(inner_block, scope()->end_position());
       if (!impl()->HasCheckedSyntax()) {
         const AstRawString* conflict = inner_scope->FindVariableDeclaredIn(
             function_scope, VariableMode::kLastLexicalVariableMode);

deps/v8/test/mjsunit/code-coverage-block.js

@@ -1097,4 +1097,41 @@ f(43);                                    // 0450
  {"start":204,"end":226,"count":1}]
 );
 
+TestCoverage(
+"https://crbug.com/v8/9857",
+`function foo() {function bar() {}}; foo()`,
+[{"start":0,"end":41,"count":1},
+  {"start":0,"end":34,"count":1},
+  {"start":16,"end":33,"count":0}]
+);
+
+TestCoverage(
+"https://crbug.com/v8/9952",
+`
+function test(foo = "foodef") {           // 0000
+  return {bar};                           // 0050
+                                          // 0100
+  function bar() {                        // 0150
+    console.log("test");                  // 0200
+  }                                       // 0250
+}                                         // 0300
+test().bar();                             // 0350`,
+[{"start":0,"end":399,"count":1},
+ {"start":0,"end":301,"count":1},
+ {"start":152,"end":253,"count":1}]);
+
+TestCoverage(
+"https://crbug.com/v8/9952",
+`
+function test(foo = (()=>{})) {           // 0000
+  return {foo};                           // 0050
+}                                         // 0100
+                                          // 0150
+test(()=>{}).foo();                       // 0200`,
+[{"start":0,"end":249,"count":1},
+ {"start":0,"end":101,"count":1},
+ {"start":21,"end":27,"count":0},
+ {"start":205,"end":211,"count":1}]
+);
+
 %DebugToggleBlockCoverage(false);