[wasm] Add regression tests for some recently fixed WasmInterpreter issues.

R=clemensh@chromium.org

Bug: chromium:766003,chromium:772332,chromium:771243
Change-Id: I1e2df014f31a87fd94154277d1a415ec359d42df
Reviewed-on: https://chromium-review.googlesource.com/721666Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48635}

test/mjsunit/regress/wasm/regress-766003.js

+// Copyright 2017 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 --wasm-interpret-all
+
+load('test/mjsunit/wasm/wasm-constants.js');
+load('test/mjsunit/wasm/wasm-module-builder.js');
+
+ __v_6 = new WasmModuleBuilder();
+__v_6.addFunction('exp1', kSig_i_i).addBody([kExprUnreachable]).exportFunc();
+ __v_7 = new WasmModuleBuilder();
+ __v_7.addImport('__v_11', '__v_11', kSig_i_i);
+try {
+; } catch(e) {; }
+ __v_8 = __v_6.instantiate().exports.exp1;
+ __v_9 = __v_7.instantiate({__v_11: {__v_11: __v_8}}).exports.call_imp;

test/mjsunit/regress/wasm/regress-771243.js

+// Copyright 2017 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 --wasm-interpret-all
+
+load('test/mjsunit/wasm/wasm-constants.js');
+load('test/mjsunit/wasm/wasm-module-builder.js');
+
+assertThrows(() => {
+ __v_29 = 0;
+function __f_1() {
+ __v_19 = new WasmModuleBuilder();
+  if (__v_25) {
+ __v_23 = __v_19.addImport('__v_24', '__v_30', __v_25);
+  }
+  if (__v_18) {
+ __v_19.addMemory();
+ __v_19.addFunction('load', kSig_i_i)
+        .addBody([ 0])
+        .exportFunc();
+  }
+ return __v_19;
+}
+ (function TestExternalCallBetweenTwoWasmModulesWithoutAndWithMemory() {
+ __v_21 = __f_1(__v_18 = false, __v_25 = kSig_i_i);
+ __v_21.addFunction('plus_one', kSig_i_i)
+      .addBody([
+        kExprGetLocal, 0,                   // -
+        kExprCallFunction, __v_29      ])
+      .exportFunc();
+ __v_32 =
+      __f_1(__v_18 = true, __v_25 = undefined);
+ __v_31 = __v_32.instantiate(); try { __v_32[__getRandomProperty()] = __v_0; delete __v_18[__getRandomProperty()]; delete __v_34[__getRandomProperty()]; } catch(e) {; };
+ __v_20 = __v_21.instantiate(
+      {__v_24: {__v_30: __v_31.exports.load}});
+ __v_20.exports.plus_one(); __v_33 = __v_43;
+})();
+});

test/mjsunit/regress/wasm/regress-772332.js

+// Copyright 2017 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 --wasm-interpret-all
+
+load('test/mjsunit/wasm/wasm-constants.js');
+load('test/mjsunit/wasm/wasm-module-builder.js');
+
+assertThrows(() => {
+let __v_50315 = 0;
+function __f_15356(__v_50316, __v_50317) {
+  let __v_50318 = new WasmModuleBuilder();
+  if (__v_50317) {
+    let __v_50319 = __v_50318.addImport('import_module', 'other_module_fn', kSig_i_i);
+  }
+      __v_50318.addMemory();
+      __v_50318.addFunction('load', kSig_i_i).addBody([ 0, 0, 0]).exportFunc();
+  return __v_50318;
+}
+  (function __f_15357() {
+    let __v_50320 = __f_15356(__v_50350 = false, __v_50351 = kSig_i_i);
+      __v_50320.addFunction('plus_one', kSig_i_i).addBody([kExprGetLocal, 0, kExprCallFunction, __v_50315, kExprI32Const, kExprI32Add, kExprReturn]).exportFunc();
+    let __v_50321 = __f_15356();
+    let __v_50324 = __v_50321.instantiate();
+    let __v_50325 = __v_50320.instantiate({
+      import_module: {
+        other_module_fn: __v_50324.exports.load
+      }
+    });
+ __v_50325.exports.plus_one();
+  })();
+});