Use preexisting SharedFunctionInfos in the asm-wasm builder

src/asmjs/asm-wasm-builder.h

 // Copyright 2015 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.
 
 #ifndef V8_ASMJS_ASM_WASM_BUILDER_H_
 #define V8_ASMJS_ASM_WASM_BUILDER_H_
 
 #include "src/allocation.h"
 #include "src/asmjs/asm-typer.h"
 #include "src/objects.h"
 #include "src/wasm/wasm-module-builder.h"
 #include "src/zone/zone.h"
 
 namespace v8 {
 namespace internal {
 
-class FunctionLiteral;
-class Script;
+class CompilationInfo;
 
 namespace wasm {
 
 class AsmWasmBuilder {
  public:
   struct Result {
     ZoneBuffer* module_bytes;
     ZoneBuffer* asm_offset_table;
     bool success;
   };
 
-  explicit AsmWasmBuilder(Isolate* isolate, Zone* zone,
-                          AstValueFactory* ast_value_factory,
-                          Handle<Script> script, FunctionLiteral* root);
+  explicit AsmWasmBuilder(CompilationInfo* info);
   Result Run(Handle<FixedArray>* foreign_args);
 
   static const char* foreign_init_name;
   static const char* single_function_name;
 
   const AsmTyper* typer() { return &typer_; }
 
  private:
-  Isolate* isolate_;
-  Zone* zone_;
-  AstValueFactory* ast_value_factory_;
-  Handle<Script> script_;
-  FunctionLiteral* literal_;
+  CompilationInfo* info_;
   AsmTyper typer_;
 };
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_ASM_WASM_BUILDER_H_