[wasm] Patch trapping position into stack trace

test/mjsunit/wasm/stack.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.
 
 // clang-format off
 // Flags: --expose-wasm
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");
 
@@ skipping 104 matching lines @@
 })();
 
 (function testWasmUnreachable() {
   try {
     module.exports.exec_unreachable();
     fail("expected wasm exception");
   } catch (e) {
     assertContains("unreachable", e.message);
     verifyStack(e.stack, [
       //            function  line        file                        toString
-      [   "exec_unreachable", null,       null, "exec_unreachable (<WASM>:-1)"], // TODO(clemensh): position should be 1
+      [   "exec_unreachable", null,       null,  "exec_unreachable (<WASM>:1)"],
       ["testWasmUnreachable",  119, "stack.js",              "stack.js:119:20"],
       [                 null,  136, "stack.js",               "stack.js:136:3"]
     ]);
     verifyWasmStack(e.stack, [
       // isWasm            funcIndex  byteOffset
-      [    true,  unreach_func.index,         -1], // TODO(clemensh): position should be 1
+      [    true,  unreach_func.index,          1],
       [   false,           undefined,       null],
       [   false,           undefined,       null],
     ]);
   }
 })();
 
 (function testWasmMemOutOfBounds() {
   try {
     module.exports.call_mem_out_of_bounds();
     fail("expected wasm exception");
   } catch (e) {
     assertContains("out of bounds", e.message);
     verifyStack(e.stack, [
       //               function   line        file             toString
-      [                     "?",  null,       null,      " (<WASM>:-1)"], // TODO(clemensh): position should be 1
+      [                     "?",  null,       null,       " (<WASM>:1)"],
       ["call_mem_out_of_bounds",  null,       null, "bounds (<WASM>:1)"],
       ["testWasmMemOutOfBounds",   140, "stack.js",   "stack.js:140:20"],
       [                    null,   160, "stack.js",    "stack.js:160:3"]
     ]);
     assertTrue(call_mem_oob_func.index != mem_oob_func.index);
     verifyWasmStack(e.stack, [
       // isWasm                funcIndex  byteOffset
-      [    true,      mem_oob_func.index,         -1], // TODO(clemensh): position should be 1
+      [    true,      mem_oob_func.index,          1],
       [    true, call_mem_oob_func.index,          1],
       [   false,               undefined,          1],
       [   false,               undefined,          1],
     ]);
   }
 })();