[tools] System analyzer: fix parsing linlined deopt location

Change-Id: I424e4de75cfd628d034033c99ce2a6e7b88c6a52
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2857958Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74269}

tools/system-analyzer/processor.mjs

@@ -230,17 +230,21 @@ export class Processor extends LogReader {
     this.addSourcePosition(codeEntry, logEntry);
     logEntry.functionSourcePosition = logEntry.sourcePosition;
     // custom parse deopt location
-    if (deoptLocation !== '<unknown>') {
+    if (deoptLocation === '<unknown>') return;
+    // Handle deopt location for inlined code: <location> inlined at <location>
+    const inlinedPos = deoptLocation.indexOf(' inlined at ');
+    if (inlinedPos > 0) {
+      deoptLocation = deoptLocation.substring(0, inlinedPos)
+    }
     const colSeparator = deoptLocation.lastIndexOf(':');
     const rowSeparator = deoptLocation.lastIndexOf(':', colSeparator - 1);
     const script = this.getScript(deoptLocation.substring(1, rowSeparator));
+    if (!script) return;
     const line =
         parseInt(deoptLocation.substring(rowSeparator + 1, colSeparator));
     const column = parseInt(
         deoptLocation.substring(colSeparator + 1, deoptLocation.length - 1));
-      logEntry.sourcePosition =
-          script.addSourcePosition(line, column, logEntry);
-    }
+    logEntry.sourcePosition = script.addSourcePosition(line, column, logEntry);
   }
 
   processScriptSource(scriptId, url, source) {