Do not call into JS from WasmDebugInfo::GetFunctionScript

test/mjsunit/wasm/debug-disassembly.js

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Flags: --expose-wasm --expose-debug-as debug
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");
 
 Debug = debug.Debug
@@ skipping 89 matching lines @@
 function setup() {
   module = builder.instantiate({func: call_debugger});
   exception = null;
   break_count = 0;
   num_wasm_scripts = 0;
 }
 
 (function testRegisteredWasmScripts1() {
   setup();
   Debug.setListener(listener);
-  // Initially 0 scripts.
-  assertEquals(0, num_wasm_scripts);
   // Call the "call_import" function -> 1 script.
   module.exports.call_import();
-  assertEquals(1, num_wasm_scripts);
-  // Call "call_import" again -> still just 1 script.
   module.exports.call_import();
-  assertEquals(1, num_wasm_scripts);
-  // Call "call_call_import" -> now 2 scripts.
   module.exports.call_call_import();
-  assertEquals(2, num_wasm_scripts);
   Debug.setListener(null);
 
   assertEquals(3, break_count);
   if (exception) throw exception;
 })();
 
 (function testRegisteredWasmScripts2() {
   setup();
   Debug.setListener(listener);
-  // Initially 0 scripts.
-  assertEquals(0, num_wasm_scripts);
-  // Call the "call_call_import" function -> 2 scripts should be registered.
   module.exports.call_call_import();
-  assertEquals(2, num_wasm_scripts);
   Debug.setListener(null);
 
   assertEquals(1, break_count);
   if (exception) throw exception;
 })();