Strip file:/ prefixes from scriptNames and fixed system tests

The inspector approach uses
[`CpuProfilingMode::kLeafNodeLineNumbers`](https://source.chromium.org/chromium/chromium/src/+/main:v8/include/v8-profiler.h;l=244;drc=27e39fa1dd71076618c358639ed8a327bc3873c4)
under the hood which changes the line numbering scheme. I updated the
tests to expect the new line number.

system-test/test.sh

@@ -2,8 +2,8 @@
 
 SRCDIR="/cloned_src"
 
-trap "cd $SRCDIR && npm run clean" EXIT
-trap "echo '** TEST FAILED **'" ERR
+# trap "cd $SRCDIR && npm run clean" EXIT
+# trap "echo '** TEST FAILED **'" ERR
 
 function timeout_after() {
   # timeout on Node 11 alpine image requires -t to specify time.
@@ -57,10 +57,11 @@ fi
 
 node -v
 node --trace-warnings "$BENCHPATH" 10 $VERIFY_TIME_LINE_NUMBERS
+ls
 
 if [[ "$VERIFY_TIME_LINE_NUMBERS" == "true" ]]; then
   pprof -lines -top -nodecount=2 time.pb.gz | tee $tty | \
-      grep "busyLoop.*src/busybench.js:[2-3][08-9]"
+      grep "busyLoop.*src/busybench.js:27"
   pprof -filefunctions -top -nodecount=2 heap.pb.gz | tee $tty | \
       grep "busyLoop.*src/busybench.js"
 else

ts/src/time-profiler-inspector.ts

@@ -77,9 +77,10 @@ function translateToTimeProfile(
     callFrame: {columnNumber, functionName, lineNumber, scriptId, url},
   }: inspector.Profiler.ProfileNode): TimeProfileNode {
     const parsedScriptId = parseInt(scriptId);
+    const scriptName = url.startsWith('file:/') ? url.slice(6) : url;
     return {
       name: functionName,
-      scriptName: url,
+      scriptName,
 
       // Add 1 because these are zero-based
       columnNumber: columnNumber + 1,