Store SharedFunctionInfos of a Script in a FixedArray indexed by their ID

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 5327b7a7fc69301413bae1b8d8c39166a4a4c250..d0c1f1d9307afa54aefa52fef4a8796603e4ba9c 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -7120,7 +7120,7 @@ class Script: public Struct {
 
   // [shared_function_infos]: weak fixed array containing all shared
   // function infos created from this script.
-  DECL_ACCESSORS(shared_function_infos, Object)
+  DECL_ACCESSORS(shared_function_infos, FixedArray)
 
   // [flags]: Holds an exciting bitfield.
   DECL_INT_ACCESSORS(flags)
@@ -7739,9 +7739,6 @@ class SharedFunctionInfo: public HeapObject {
   // Indicates that the the shared function info is deserialized from cache.
   DECL_BOOLEAN_ACCESSORS(deserialized)
 
-  // Indicates that the the shared function info has never been compiled before.
-  DECL_BOOLEAN_ACCESSORS(never_compiled)
-
   // Whether this function was created from a FunctionDeclaration.
   DECL_BOOLEAN_ACCESSORS(is_declaration)
 
@@ -7836,10 +7833,12 @@ class SharedFunctionInfo: public HeapObject {
     SharedFunctionInfo* Next();
 
    private:
-    bool NextScript();
+    void NextScript();
 
     Script::Iterator script_iterator_;
     WeakFixedArray::Iterator sfi_iterator_;
+    Script* current_script_;
+    int index_;
     DisallowHeapAllocation no_gc_;
     DISALLOW_COPY_AND_ASSIGN(Iterator);
   };
@@ -8001,7 +8000,7 @@ class SharedFunctionInfo: public HeapObject {
     kAllowLazyCompilation,
     kMarkedForTierUp,
     kOptimizationDisabled,
-    kNeverCompiled,
+    kIsClassFieldInitializer,
     kNative,
     kStrictModeFunction,
     kUsesArguments,
@@ -8023,7 +8022,6 @@ class SharedFunctionInfo: public HeapObject {
     kIsDeclaration,
     kIsAsmWasmBroken,
     kRequiresClassFieldInit,
-    kIsClassFieldInitializer,
     kCompilerHintsCount,  // Pseudo entry
   };
   // kFunctionKind has to be byte-aligned