[test/inspector] remove any usage of v8::Extension

test/inspector/debugger/framework-nested-scheduled-break-expected.txt

Index: test/inspector/debugger/framework-nested-scheduled-break-expected.txt
diff --git a/test/inspector/debugger/framework-nested-scheduled-break-expected.txt b/test/inspector/debugger/framework-nested-scheduled-break-expected.txt
index a7ab22229ead53db57de6e7ea14f77432d236db2..f9901f099b63e197e6c671943c20681ec0237cc1 100644
--- a/test/inspector/debugger/framework-nested-scheduled-break-expected.txt
+++ b/test/inspector/debugger/framework-nested-scheduled-break-expected.txt
@@ -3,10 +3,10 @@ break reason: framework-break
 break aux data: {
   "data": "data for framework-break"
 }
-doFrameworkBreak (framework.js:20:2)
-doFrameworkWork (framework.js:15:2)
-frameworkCall (framework.js:9:2)
-testFunction (user.js:27:2)
+doFrameworkBreak (framework.js:20:12)
+doFrameworkWork (framework.js:15:12)
+frameworkCall (framework.js:9:12)
+testFunction (user.js:27:12)
 (anonymous) (expr.js:0:0)
 
 break reason: ambiguous
@@ -25,17 +25,17 @@ break aux data: {
 }
 callback (user.js:31:17)
 doFrameworkWork (framework.js:16:2)
-frameworkCall (framework.js:9:2)
-testFunction (user.js:27:2)
+frameworkCall (framework.js:9:12)
+testFunction (user.js:27:12)
 (anonymous) (expr.js:0:0)
 
 break reason: user-break
 break aux data: {
   "data": "data for user-break"
 }
-callback (user.js:32:2)
+callback (user.js:32:12)
 doFrameworkWork (framework.js:16:2)
-frameworkCall (framework.js:9:2)
-testFunction (user.js:27:2)
+frameworkCall (framework.js:9:12)
+testFunction (user.js:27:12)
 (anonymous) (expr.js:0:0)