[DevTools] console.log("%d") should support BigInts

R=luoe@chromium.org
TBR=lushnikov@chromium.org

Bug: v8:7486
Change-Id: I332f979fb91d97c80f08f7dadd47d8929439c3fc
Reviewed-on: https://chromium-review.googlesource.com/1169777Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Reviewed-by: Erik Luo <luoe@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582276}

third_party/WebKit/LayoutTests/TestExpectations

@@ -2510,10 +2510,6 @@ crbug.com/543369 [ Win Mac Linux ] fast/forms/select-popup/popup-menu-appearance
 
 crbug.com/548765 http/tests/devtools/console-fetch-logging.js [ Failure Pass ]
 
-# When BigInts are on by default, these should pass and be removed along with their FlagExpectations.
-crbug.com/v8/7486 http/tests/devtools/startup/console/console-format-startup-bigint.js [ Skip ]
-crbug.com/v8/7486 http/tests/devtools/console/console-format-bigint.js [ Skip ]
-
 crbug.com/564109 [ Win ]  http/tests/webfont/font-display-intervention.html [ Pass Failure Timeout ]
 
 crbug.com/399951 http/tests/mime/javascript-mimetype-usecounters.html [ Pass Failure ]

third_party/WebKit/LayoutTests/flag-specific/js-flags=--harmony-bigint/http/tests/devtools/console/console-format-bigint-expected.txt

-Tests that console properly displays BigInts.
-
-console-format-bigint.js:15 1n
-console-format-bigint.js:16 BigInt {2n}
-console-format-bigint.js:17 [1n]
-console-format-bigint.js:18 [BigInt]
-console-format-bigint.js:19 null 1n BigInt {2n}
-Expanded all messages
-console-format-bigint.js:15 1n
-console-format-bigint.js:16 BigInt {2n}
-    __proto__: BigInt
-    [[PrimitiveValue]]: 2n
-console-format-bigint.js:17 [1n]
-    0: 1n
-    length: 1
-    __proto__: Array(0)
-console-format-bigint.js:18 [BigInt]
-    0: BigInt {2n}
-    length: 1
-    __proto__: Array(0)
-console-format-bigint.js:19 null 1n BigInt {2n}
-    __proto__: BigInt
-    [[PrimitiveValue]]: 2n
-

third_party/WebKit/LayoutTests/flag-specific/js-flags=--harmony-bigint/http/tests/devtools/startup/console/console-format-startup-bigint-expected.txt

-Tests console logging for messages with BigInts that happen before DevTools is open.
-
-console-format-startup-bigint.html:5 1n
-console-format-startup-bigint.html:6 BigInt
-    __proto__: BigInt
-    [[PrimitiveValue]]: 2n
-console-format-startup-bigint.html:7 Array(1)
-    0: 1n
-    length: 1
-    __proto__: Array(0)
-console-format-startup-bigint.html:8 Array(1)
-    0: BigInt {2n}
-    length: 1
-    __proto__: Array(0)
-console-format-startup-bigint.html:9 null 1n BigInt
-    __proto__: BigInt
-    [[PrimitiveValue]]: 2n
-

third_party/WebKit/LayoutTests/http/tests/devtools/console/console-format-bigint-expected.txt

@@ -5,6 +5,7 @@ console-format-bigint.js:16 BigInt {2n}
 console-format-bigint.js:17 [1n]
 console-format-bigint.js:18 [BigInt]
 console-format-bigint.js:19 null 1n BigInt {2n}
+console-format-bigint.js:20 123n 123n 123n 123n
 Expanded all messages
 console-format-bigint.js:15 1n
 console-format-bigint.js:16 BigInt {2n}
@@ -21,4 +22,5 @@ console-format-bigint.js:18 [BigInt]
 console-format-bigint.js:19 null 1n BigInt {2n}
     __proto__: BigInt
     [[PrimitiveValue]]: 2n
+console-format-bigint.js:20 123n 123n 123n 123n
 

third_party/WebKit/LayoutTests/http/tests/devtools/console/console-format-bigint.js

@@ -17,6 +17,7 @@
     console.log([1n]);
     console.log([wrappedBigInt]);
     console.log(null, 1n, wrappedBigInt);
+    console.log('%d %i %d %i', 123n, 123n, BigInt(123), BigInt(123));
   `);
 
   ConsoleTestRunner.dumpConsoleMessages(false, false, TestRunner.textContentWithLineBreaks);

third_party/blink/renderer/devtools/front_end/console/ConsoleViewMessage.js

@@ -796,6 +796,8 @@ Console.ConsoleViewMessage = class {
     }
 
     function integerFormatter(obj) {
+      if (obj.type === 'bigint')
+        return obj.description;
       if (typeof obj.value !== 'number')
         return 'NaN';
       return Math.floor(obj.value);