The important bit is using MachineType::TaggedSigned instead of AnyTagged
in CSA. Everything else, it's just the result of adding types to variables.

SloppyTNode-ify LoadAndUntagToWord32ObjectField.

Both LoadAndUntagSmi and StoreAndTagSmi were only used once, and their
names were not clear. Inline those where they were used.

TNodify:
* ReloadBytecodeOffset
* LoadAndUntagRegister
* GetInterpretedFramePointer
* Advance (the three variants)
* SaveBytecodeOffset
* BytecodeOffset

Type variables:
* interpreted_frame_pointer_
* bytecode_offset_

Create macros:
* TYPED_VARIABLE_CONSTRUCTOR
* TVARIABLE_CONSTRUCTOR
which are similar to their non-typed counterparts.

Bug: v8:7703, v8:6949
Change-Id: I776e3fe16ca642f868bb635b8bcd5b8b78ca6fea
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1758308Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63522}