Handle stack frames differently inside and on the boundary of wasm.

src/compiler/wasm-compiler.cc

Index: src/compiler/wasm-compiler.cc
diff --git a/src/compiler/wasm-compiler.cc b/src/compiler/wasm-compiler.cc
index 893cde4802d1cc447ea833a121a4af3d4a77c86e..0d2619773f5db26530a8bf451c7805f727cf1f33 100644
--- a/src/compiler/wasm-compiler.cc
+++ b/src/compiler/wasm-compiler.cc
@@ -2233,8 +2233,8 @@ Handle<JSFunction> CompileJSToWasmWrapper(
         module->GetFunctionSignature(index)->parameter_count());
     CallDescriptor* incoming = Linkage::GetJSCallDescriptor(
         &zone, false, params + 1, CallDescriptor::kNoFlags);
-    // TODO(titzer): this is technically a WASM wrapper, not a wasm function.
-    Code::Flags flags = Code::ComputeFlags(Code::WASM_FUNCTION);
+    Code::Flags flags =
+        Code::ComputeWasmFlags(Code::WASM_FUNCTION, Code::JS_TO_WASM);
     bool debugging =
 #if DEBUG
         true;
@@ -2313,8 +2313,8 @@ Handle<Code> CompileWasmToJSWrapper(Isolate* isolate, wasm::ModuleEnv* module,
     // Schedule and compile to machine code.
     CallDescriptor* incoming =
         wasm::ModuleEnv::GetWasmCallDescriptor(&zone, sig);
-    // TODO(titzer): this is technically a WASM wrapper, not a wasm function.
-    Code::Flags flags = Code::ComputeFlags(Code::WASM_FUNCTION);
+    Code::Flags flags =
+        Code::ComputeWasmFlags(Code::WASM_FUNCTION, Code::WASM_TO_JS);
     bool debugging =
 #if DEBUG
         true;
@@ -2398,7 +2398,7 @@ Handle<Code> CompileWasmFunction(wasm::ErrorThrower& thrower, Isolate* isolate,
   if (kPointerSize == 4) {
     descriptor = module_env->GetI32WasmCallDescriptor(&zone, descriptor);
   }
-  Code::Flags flags = Code::ComputeFlags(Code::WASM_FUNCTION);
+  Code::Flags flags = Code::ComputeWasmFlags(Code::WASM_FUNCTION);
   // add flags here if a meaningful name is helpful for debugging.
   bool debugging =
 #if DEBUG