[wasm] Enforce that function bodies end with the \"end\" opcode.

test/cctest/wasm/test-wasm-breakpoints.cc

Index: test/cctest/wasm/test-wasm-breakpoints.cc
diff --git a/test/cctest/wasm/test-wasm-breakpoints.cc b/test/cctest/wasm/test-wasm-breakpoints.cc
index 81bc632e44f1dc5546aa797db85fabef7a6cc549..d2374a44c02c99ff16091d62bd42c1f54ee7b39d 100644
--- a/test/cctest/wasm/test-wasm-breakpoints.cc
+++ b/test/cctest/wasm/test-wasm-breakpoints.cc
@@ -60,11 +60,11 @@ TEST(CollectPossibleBreakpoints) {
   Handle<WasmInstanceObject> instance = runner.module().instance_object();
   std::vector<debug::Location> locations;
   CheckLocations(instance->compiled_module(), {0, 0}, {1, 0},
-                 {{0, 1}, {0, 2}, {0, 4}, {0, 6}});
+                 {{0, 1}, {0, 2}, {0, 4}, {0, 6}, {0, 7}});
   CheckLocations(instance->compiled_module(), {0, 2}, {0, 4}, {{0, 2}});
   CheckLocations(instance->compiled_module(), {0, 2}, {0, 5}, {{0, 2}, {0, 4}});
-  CheckLocations(instance->compiled_module(), {0, 6}, {0, 7}, {{0, 6}});
-  CheckLocations(instance->compiled_module(), {0, 6}, {1, 0}, {{0, 6}});
-  CheckLocations(instance->compiled_module(), {0, 7}, {1, 0}, {});
-  CheckLocationsFail(instance->compiled_module(), {0, 8}, {1, 0});
+  CheckLocations(instance->compiled_module(), {0, 7}, {0, 8}, {{0, 7}});
+  CheckLocations(instance->compiled_module(), {0, 7}, {1, 0}, {{0, 7}});
+  CheckLocations(instance->compiled_module(), {0, 8}, {1, 0}, {});
+  CheckLocationsFail(instance->compiled_module(), {0, 9}, {1, 0});
 }