[clang] In Sema use new `parentEvaluationContext` function

[Fznamznon]

Instead of doing ExprEvalContexts[ExprEvalContexts.size() - 2] call now parentEvaluationContext. There are a few places where this can be done:

[source/llvm-project/clang]
$ grep -rni "ExprEvalContexts\[ExprEvalContexts.size() - 2\]"

lib/Sema/SemaExpr.cpp:17227:      ExprEvalContexts[ExprEvalContexts.size() - 2].Context;
lib/Sema/SemaExpr.cpp:17244:      ExprEvalContexts[ExprEvalContexts.size() - 2]
lib/Sema/SemaExpr.cpp:17251:  const auto &Prev = ExprEvalContexts[ExprEvalContexts.size() - 2];
lib/Sema/SemaExpr.cpp:17696:  auto &PrevRecord = ExprEvalContexts[ExprEvalContexts.size() - 2];
include/clang/Sema/Sema.h:5159:    return ExprEvalContexts[ExprEvalContexts.size() - 2];
include/clang/Sema/Sema.h:6292:        ExprEvalContexts[ExprEvalContexts.size() - 2]
include/clang/Sema/Sema.h:6295:      auto &PrevRecord = ExprEvalContexts[ExprEvalContexts.size() - 2]

[llvmbot]

Hi!

This issue may be a good introductory issue for people new to working on LLVM. If you would like to work on this issue, your first steps are:

1. Check that no other contributor has already been assigned to this issue. If you believe that no one is actually working on it despite an assignment, ping the person. After one week without a response, the assignee may be changed.
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3. Fix the issue locally.
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7. Open a pull request to the upstream repository on GitHub. Detailed instructions can be found in GitHub's documentation. Mention this issue in the description of the pull request.

If you have any further questions about this issue, don't hesitate to ask via a comment in the thread below.

[llvmbot]

@llvm/issue-subscribers-good-first-issue

Author: Mariya Podchishchaeva (Fznamznon)

Instead of doing `ExprEvalContexts[ExprEvalContexts.size() - 2]` call now `parentEvaluationContext`. There are a few places where this can be done: ``` [source/llvm-project/clang] $ grep -rni "ExprEvalContexts\[ExprEvalContexts.size() - 2\]"

lib/Sema/SemaExpr.cpp:17227: ExprEvalContexts[ExprEvalContexts.size() - 2].Context;
lib/Sema/SemaExpr.cpp:17244: ExprEvalContexts[ExprEvalContexts.size() - 2]
lib/Sema/SemaExpr.cpp:17251: const auto &Prev = ExprEvalContexts[ExprEvalContexts.size() - 2];
lib/Sema/SemaExpr.cpp:17696: auto &PrevRecord = ExprEvalContexts[ExprEvalContexts.size() - 2];
include/clang/Sema/Sema.h:5159: return ExprEvalContexts[ExprEvalContexts.size() - 2];
include/clang/Sema/Sema.h:6292: ExprEvalContexts[ExprEvalContexts.size() - 2]
include/clang/Sema/Sema.h:6295: auto &PrevRecord = ExprEvalContexts[ExprEvalContexts.size() - 2]

</details>

[llvmbot]

@llvm/issue-subscribers-clang-frontend

Author: Mariya Podchishchaeva (Fznamznon)

Instead of doing `ExprEvalContexts[ExprEvalContexts.size() - 2]` call now `parentEvaluationContext`. There are a few places where this can be done: ``` [source/llvm-project/clang] $ grep -rni "ExprEvalContexts\[ExprEvalContexts.size() - 2\]"

lib/Sema/SemaExpr.cpp:17227: ExprEvalContexts[ExprEvalContexts.size() - 2].Context;
lib/Sema/SemaExpr.cpp:17244: ExprEvalContexts[ExprEvalContexts.size() - 2]
lib/Sema/SemaExpr.cpp:17251: const auto &Prev = ExprEvalContexts[ExprEvalContexts.size() - 2];
lib/Sema/SemaExpr.cpp:17696: auto &PrevRecord = ExprEvalContexts[ExprEvalContexts.size() - 2];
include/clang/Sema/Sema.h:5159: return ExprEvalContexts[ExprEvalContexts.size() - 2];
include/clang/Sema/Sema.h:6292: ExprEvalContexts[ExprEvalContexts.size() - 2]
include/clang/Sema/Sema.h:6295: auto &PrevRecord = ExprEvalContexts[ExprEvalContexts.size() - 2]

</details>

[a-tarasyuk]

Can I be assigned to this issue?

[shafik]

Can I be assigned to this issue?

done