[kernel] Stream everything. Replace .kernel_function with .kernel_offset

runtime/vm/raw_object.h

Index: runtime/vm/raw_object.h
diff --git a/runtime/vm/raw_object.h b/runtime/vm/raw_object.h
index 488739cfbf2f115848aa9a7b095500405043f7be..f583f16b72e1a98eb579e680887680583a45ccfd 100644
--- a/runtime/vm/raw_object.h
+++ b/runtime/vm/raw_object.h
@@ -850,7 +850,7 @@ class RawFunction : public RawObject {
   uint32_t kind_tag_;                          // See Function::KindTagBits.
   int16_t num_fixed_parameters_;
   int16_t num_optional_parameters_;  // > 0: positional; < 0: named.
-  NOT_IN_PRECOMPILED(void* kernel_function_);
+  NOT_IN_PRECOMPILED(intptr_t kernel_offset_);
   NOT_IN_PRECOMPILED(uint16_t optimized_instruction_count_);
   NOT_IN_PRECOMPILED(uint16_t optimized_call_site_count_);
   NOT_IN_PRECOMPILED(int8_t deoptimization_counter_);
@@ -962,7 +962,7 @@ class RawField : public RawObject {
   int8_t guarded_list_length_in_object_offset_;
 
   uint8_t kind_bits_;  // static, final, const, has initializer....
-  NOT_IN_PRECOMPILED(void* kernel_field_);
+  NOT_IN_PRECOMPILED(intptr_t kernel_offset_);
 
   friend class CidRewriteVisitor;
 };
@@ -1044,6 +1044,8 @@ class RawScript : public RawObject {
   int32_t col_offset_;
   int8_t kind_;  // Of type Kind.
   int64_t load_timestamp_;
+  const uint8_t* kernel_data_;
+  intptr_t kernel_data_size_;
 };