[umbrello] [Bug 338649] Extend C++ import for C++11

https://bugs.kde.org/show_bug.cgi?id=338649

--- Comment #19 from Oliver Kellogg <[email protected]> ---
Git commit 464c7132349e4cf10a84fc9e6f3792087a934158 by Oliver Kellogg.
Committed on 30/04/2021 at 19:11.
Pushed by okellogg into branch 'release/21.04'.

Support C++11 "enum class" in C++ Import:

lib/cppparser/ast.{h,cpp} class EnumSpecifierAST
- Add functions setClass, isClass accessing new member m_isClass of type
  bool.
- Add functions setEnumBase, enumBase accessing new member m_enumBase
  of type TypeSpecifierAST::Node.

lib/cppparser/parser.cpp function parseEnumSpecifier
- Add bool isClass initialized to false.
- After consuming Token_enum add int tk initialized to
  m_lexer->lookAhead(0).
- If tk is Token_class or Token_struct then set isClass true and call
  nextToken().
- After call to parseName(name) add variable enumBase of type
  TypeSpecifierAST::Node.
- If m_lexer->lookAhead(0) is ':' then call nextToken() followed by
  parseSimpleTypeSpecifier(enumBase).
- Reassign tk from m_lexer->lookAhead(0) and permit only ';' or '{' as
  its value.
- Remove call to nextToken(), it is postponed to after the assignments
  to `ast'.
- At assignments to `ast' call ast->setClass(isClass) and
  ast->setEnumBase(enumBase).

test/import/cxx/cxx11-strongly-typed-enumerations.h
- Rename second definition of Enum2,Enum3 to Enum4,Enum5 to avoid
  overlap.

M  +12   -0    lib/cppparser/ast.cpp
M  +12   -0    lib/cppparser/ast.h
M  +40   -20   lib/cppparser/parser.cpp
M  +5    -4    test/import/cxx/cxx11-strongly-typed-enumerations.h

https://invent.kde.org/sdk/umbrello/commit/464c7132349e4cf10a84fc9e6f3792087a934158

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