[clang-format] Change heuristic for locating lambda template arguments

Previously, the heuristic was simply to look for template argument-
specific keywords, such as typename, class, template and au

[clang-format] Change heuristic for locating lambda template arguments

Previously, the heuristic was simply to look for template argument-
specific keywords, such as typename, class, template and auto
that are preceded by a left angle bracket <.

This changes the heuristic to instead look for a left angle bracket <
preceded by a right square bracket ], since according to the C++
grammar, the template arguments must *directly* follow the introducer.
(This sort of check might just end up being *too* aggressive)

This patch also adds a bunch more token annotator tests for lambdas,
specifically for some of the stranger forms of lambdas now allowed as
of C++20 or soon-to-be-allowed as part of C++23.

Fixes https://github.com/llvm/llvm-project/issues/57093

This does NOT resolve the FIXME regarding explicit template lists, but
perhaps it gets closer

Differential Revision: https://reviews.llvm.org/D132295

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[clang-format] Concepts: allow identifiers after negation

Previously, the formatter would refuse to treat identifiers within a
compound concept definition as actually part of the definition, if
they

[clang-format] Concepts: allow identifiers after negation

Previously, the formatter would refuse to treat identifiers within a
compound concept definition as actually part of the definition, if
they were after the negation operator !. It is now made consistent
with the likes of && and ||.

Fixes https://github.com/llvm/llvm-project/issues/55898

Differential Revision: https://reviews.llvm.org/D131978

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[clang-format] Allow `throw` to be a keyword in front of casts

This makes throw more similar to return. However, unlike return,
it has to more strict as to not remove spaces after usages of throw as

[clang-format] Allow `throw` to be a keyword in front of casts

This makes throw more similar to return. However, unlike return,
it has to more strict as to not remove spaces after usages of throw as
a (deprecated) exception specifier.

Fixes https://github.com/llvm/llvm-project/issues/57391

Differential Revision: https://reviews.llvm.org/D132762

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[clang-format] Don't put `noexcept` on empty line following constructor

With the AlwaysBreakTemplateDeclarations option, having a constructor
template for a type consisting of all-uppercase letters

[clang-format] Don't put `noexcept` on empty line following constructor

With the AlwaysBreakTemplateDeclarations option, having a constructor
template for a type consisting of all-uppercase letters with a
noexcept specifier would put said noexcept specifier on its own blank
line.

This is because the all-uppercase type is understood as a macro-like
attribute (such as DEPRECATED()), and noexcept is seen as the
declaration. However, noexcept is a keyword and cannot be an
identifier on its own.

Fixes https://github.com/llvm/llvm-project/issues/56216

Differential Revision: https://reviews.llvm.org/D132189

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[clang-format] Fix a bug in merging blocks with a wrapped l_brace

When the opening brace of a control statement block is wrapped, we
must check the previous line to determine whether to try to merge

[clang-format] Fix a bug in merging blocks with a wrapped l_brace

When the opening brace of a control statement block is wrapped, we
must check the previous line to determine whether to try to merge
the block.

Fixes #38639.
Fixes #48007.
Fixes #57421.

Differential Revision: https://reviews.llvm.org/D133093

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[clang-format] Fix annotating when deleting array of pointers

Fixes https://github.com/llvm/llvm-project/issues/57418

The token `*` below should be annotated as `UnaryOperator`.

```
delete[] *ptr;

[clang-format] Fix annotating when deleting array of pointers

Fixes https://github.com/llvm/llvm-project/issues/57418

The token `*` below should be annotated as `UnaryOperator`.

```
delete[] *ptr;
```

Reviewed By: owenpan, MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D132911

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[clang-format] Fix a bug in inserting braces at trailing comments

If the style wraps control statement braces, the opening braces
should be inserted after the trailing comments if present.

Fixes #5

[clang-format] Fix a bug in inserting braces at trailing comments

If the style wraps control statement braces, the opening braces
should be inserted after the trailing comments if present.

Fixes #57419.

Differential Revision: https://reviews.llvm.org/D132905

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[clang-format] Fix a bug in removing braces for the LLVM style

When an l_brace is wrapped and the line above it ends with a
comment, the annotator adds ColumnLimit to the TotalLength of the
l_brace,

[clang-format] Fix a bug in removing braces for the LLVM style

When an l_brace is wrapped and the line above it ends with a
comment, the annotator adds ColumnLimit to the TotalLength of the
l_brace, so the actual column position of the l_brace must be
adjusted accordingly.

Fixes #57376.

Differential Revision: https://reviews.llvm.org/D132805

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[clang-format] Rework removeBraces() in Format.cpp

Fixes #57373.

Differential Revision: https://reviews.llvm.org/D132719

[clang-format] Fix regressions in WhitespaceSensitiveMacros

Fixes #54522.
Fixes #57158.

Differential Revision: https://reviews.llvm.org/D132001

[clang-format] Fix BeforeHash indent of comments above PPDirective

Fixes #56326.

Differential Revision: https://reviews.llvm.org/D132097

[clang-format] Handle return type auto followed by l_paren

Fixes #57160.

Differential Revision: https://reviews.llvm.org/D132008

[clang-format] Handle comments between access specifier and colon

Fixes #56740.

Differential Revision: https://reviews.llvm.org/D131940

[clang-format] Distinguish logical and after bracket from reference

Fix commit `b646f0955574` and remove redundant code.

Differential Revision: https://reviews.llvm.org/D131750

[clang-format] Missing space between trailing return type 'auto' and left brace

There's no a space symbol between trailing return type `auto` and left brace `{`.

The simpliest examles of code to r

[clang-format] Missing space between trailing return type 'auto' and left brace

There's no a space symbol between trailing return type `auto` and left brace `{`.

The simpliest examles of code to reproduce the issue:

```
[]() -> auto {}
```

and

```
auto foo() -> auto {}
```

Depends on D130299

Reviewed By: HazardyKnusperkeks, curdeius, owenpan

Differential Revision: https://reviews.llvm.org/D130417

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[clang-format] Indent tokens after hash only if it starts a line

Fixes #56602.

Differential Revision: https://reviews.llvm.org/D130136

[clang-format] Indent TT_CtorInitializerColon after requires clauses

Fixes https://github.com/llvm/llvm-project/issues/56215

Differential Revision: https://reviews.llvm.org/D129942

[clang-format] Never remove braces in macro definitions

Fixes #56559.

Differential Revision: https://reviews.llvm.org/D129921

[clang-format] distinguish multiplication after brace-init from pointer

After https://github.com/llvm/llvm-project/commit/b646f0955574c6ad4c156c9db522e46f597cfda9,
the added regression test started

[clang-format] distinguish multiplication after brace-init from pointer

After https://github.com/llvm/llvm-project/commit/b646f0955574c6ad4c156c9db522e46f597cfda9,
the added regression test started being formatted as-if the
multiplication `*` was a pointer. This adapts the heuristic to
distinguish between these two cases.

Reviewed By: jackhong12, curdeius, HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D129771

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[clang-format] Fix invalid-code-generation by RemoveBracesLLVM

When removing an r_brace that is the first token of an annotated line, if the
line above ends with a line comment, clang-format generat

[clang-format] Fix invalid-code-generation by RemoveBracesLLVM

When removing an r_brace that is the first token of an annotated line, if the
line above ends with a line comment, clang-format generates invalid code by
merging the tokens after the r_brace into the line comment.

Fixes #56488.

Differential Revision: https://reviews.llvm.org/D129742

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[clang-format] Break on AfterColon only if not followed by comment

Break after a constructor initializer colon only if it's not followed by a
comment on the same line.

Fixes #41128.
Fixes #43246.

[clang-format] Break on AfterColon only if not followed by comment

Break after a constructor initializer colon only if it's not followed by a
comment on the same line.

Fixes #41128.
Fixes #43246.

Differential Revision: https://reviews.llvm.org/D129057

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[clang-format][NFC] Replace an EXPECT_EQ with a verifyFormat

[clang-format] Fix misplacement of `*` in declaration of pointer to struct

Fixes #55810

Differential Revision: https://reviews.llvm.org/D127873

[clang-format] Handle more cases for RemoveBracesLLVM

Call mightFitOneOneline() on the line before the closing brace only
if it is at the level of the block.

Differential Revision: https://reviews.

[clang-format] Handle more cases for RemoveBracesLLVM

Call mightFitOneOneline() on the line before the closing brace only
if it is at the level of the block.

Differential Revision: https://reviews.llvm.org/D127614

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[clang-format] Fix a bug in RemoveBracesLLVM

Remove the braces of an else block only if the r_brace of the block
is followed by an if.

Differential Revision: https://reviews.llvm.org/D127532