[clang][bytecode] Always compile most recent function decl (#124722)

[clang][bytecode][NFC] Remove APValue Result argument where unnecessary (#118199)

This is unneeded in almost all circumstances. We only return an APValue
back to clang when the evaluation is finishe

[clang][bytecode][NFC] Remove APValue Result argument where unnecessary (#118199)

This is unneeded in almost all circumstances. We only return an APValue
back to clang when the evaluation is finished, and that is always done
by an EvalEmitter - which has its own implementation of the Ret
instructions.

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[clang][bytecode] Check for memory leaks after destroying global scope (#112868)

The global scope we create when evaluating expressions might free some
of the dynamic memory allocations, so we can'

[clang][bytecode] Check for memory leaks after destroying global scope (#112868)

The global scope we create when evaluating expressions might free some
of the dynamic memory allocations, so we can't check for memory leaks
before destroying it.

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[clang][bytecode] Start implementing fixed point types (#110216)

Add the primitive type and implement to-bool casts.

[clang][bytecode] Allow continuing when discarded MemberExpr Base fails (#107231)

We don't need the value in this case, since we're discarding it anyway.
Allow continuing the interpretation but not

[clang][bytecode] Allow continuing when discarded MemberExpr Base fails (#107231)

We don't need the value in this case, since we're discarding it anyway.
Allow continuing the interpretation but note the side effect.

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[clang][bytecode] Only visit local variables if they have constant init (#107576)

See the comment I added for why this is weird. We might want to have a
different mechanism for this in the future.

[clang][bytecode] Only visit local variables if they have constant init (#107576)

See the comment I added for why this is weird. We might want to have a
different mechanism for this in the future.

Fixes https://github.com/llvm/llvm-project/issues/101801

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[clang][bytecode] Support ObjC blocks (#104551)

I started out by adding a new pointer type for blocks, and I was fully
prepared to compile their AST to bytecode and later call them.

... then I f

[clang][bytecode] Support ObjC blocks (#104551)

I started out by adding a new pointer type for blocks, and I was fully
prepared to compile their AST to bytecode and later call them.

... then I found out that the current interpreter doesn't support
calling blocks at all. So we reuse `Function` to support sources other
than `FunctionDecl`s and classify `BlockPointerType` as `PT_FnPtr`.

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[clang][bytecode] Classify 1-bit unsigned integers as bool (#104662)

This happens for enum types with bool parent types. isBooleanType()
returns false for them however.

The previous version did

[clang][bytecode] Classify 1-bit unsigned integers as bool (#104662)

This happens for enum types with bool parent types. isBooleanType()
returns false for them however.

The previous version did the same thing by re-classifying the enum
integer type, but that breaks with forward-declared enums.

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[clang] Rename all AST/Interp stuff to AST/ByteCode (#104552)

"Interp" clashes with the clang interpreter and people often confuse
this.