Mostly done using the following ruby script:
Dir.glob('**/*.cpp').each { |file|
  next if file =~ %r{src/shared/qbs|/qmljs/}
  s = File.read(file)
  s.scan(/^using namespace (.*);$/) {
    ns = $1
    t = s.gsub(/^(.*)\b#{ns}::((?!Const)[A-Z])/) { |m|
      before = $1
      char = $2
      if before =~ /"|\/\/|\\|using|SIGNAL|SLOT|Q_/
        m
      else
        before + char
      end
    }
    if t != s
      puts file
      File.open(file, 'w').write(t)
    end
  }
}

Change-Id: I6fbe13ddc1485efe95c3156097bf41d90c0febac
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

Change-Id: Ib7dfa4d3984f807985b7ce2ee0e58fb0565adc06
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

* Cuts direct dependency to CPlusPlus from cppeditor.h, but
  cppfunctiondecldeflink.h still pulls it in.

* Cuts direct dependency to
  cppeditor.h from cppvirtualfunctionassistprovider.cpp, but it still
  depends on cppeditorconstants.h.

* Cuts direct dependency to cppeditor.h from cppelementevaluator.cpp.

The long-term goal is to make the CppEditor independent from concrete
code model backends.

Change-Id: I291ee0d0da5fc5ed1a839a763fe7be11dcf7a6fb
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>

Change-Id: I85f7398aee59d0d36f0e5c3bf88ff3c96002e394
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

Better suited to avoid the indirection (sizeof(Token) > sizeof(void *))

Change-Id: Ia5f42781e720ef6aa8161f8f81ae8ddd8e58c837
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

Change-Id: I3c22ef2685d7aa589f5d0ab74d693653a4c32082
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>

... and some of the related implementation details

Change-Id: I1f03aa5acf2d3fb2cfc2a6a7845f3d3578b0408d
Reviewed-by: David Schulz <david.schulz@digia.com>

*Document* and *Layout* classes, all basetext* files

Change-Id: I1c6e376733a434fcb5c7f19c6210dfa031eeafde
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

Replace the CppModelManagerInterface/derived CppModelManager
combo by a more common CppModelManager/CppModelManagerPrivate
pimpl pattern.

Change-Id: Ia4582845ed94d5ef60b8571bab9b2260c6290287
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

That is, if the user does Ctrl+LeftClick or (Ctrl+E,) F2, but not on
hover.

The described bug in the report occurred because we immediately jump to
an item if there is only one, e.g. in case of no overrides. That could
also happen on hover, which lead to the undesired effect.

Change-Id: I79f6fa1f90d37ea209da022d55d48aab2c13c21a
Task-number: QTCREATORBUG-12986
Reviewed-by: David Schulz <david.schulz@digia.com>

They do not really depend on CppEditorWidget and will be re-used in a
follow-up change.

    CppEditorWidget::identifierUnderCursor()
    CppEditorWidget::findCanonicalMacro()

Change-Id: I553bb68694fb4b5f1baa331debf33ae234e3dedf
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

There was document(), textDocument() and baseTextDocument().
Two should be enough...

Change-Id: Id9e41c8d857c5cb3269a9fce5ab594d34448c982
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

The base pattern is FooEditor for BaseTextEditor derived classes
and FooEditorWidget for BaseTextEditorWidget derived classes. So:

CPPEditorWidget -> CppEditorWidget
CPPEditorWidgetPrivate -> CppEditorWidgetPrivate
...::EditorWidget -> PythonEditorWidget
GLSLTextEditorWidget -> GlslEditorWidget
GLSLEditorEditable -> GlslEditor

Change-Id: I76d34a3694c2fb35491982d86e83f7e4774c0be6
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

...from the semantic info before trying to use it.

Just after opening a file and using Follow Symbol the semantic document
might not be yet calculated.

Change-Id: I62deaf86415a2e2b0d7f1285f90bdcd9b5925a2e
Reviewed-by: Nikita Baryshnikov <nib952051@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

The condition didn't make sense. tk.kind() can't be < T_FIRST_QT_KEYWORD
*and* tk.kind() > T_LAST_KEYWORD at the same time.

Change-Id: Id300ad84f37eeff5081b0389c00d574a9cb23f35
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

In most cases we need to work with the utf16 indices. Only in
cppfindreferences the byte interface is still needed since there we read
in files and work on a QByteArray to save memory.

Change-Id: I6ef6a93fc1875a8c9a305c075d51a9ca034c41bb
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

* Consolidate code dealing with C++ identifiers into cpptoolsreuse.h
* Handle code points that are represented with two QChars

Change-Id: I4fb4435aa539f65d88598cac0b50629f33f32440
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...especially in CppTools/CppEditor where the offsets are used with a
QString/QTextDocument.

Change-Id: Ic6d18fbc01fb9cc899a9bd2d7424cd2edae487f1
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Task-number: QTCREATORBUG-12254
Change-Id: I4179c78f3ce6bf2236f8375da1765122a974118c
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

This will avoid confusion when later more length and indices methods are
added.

In Token:
    length() --> bytes()
    begin() --> bytesBegin()
    end() --> bytesEnd()

Change-Id: I244c69b022e239ee762b4114559e707f93ff344f
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Change-Id: I1f3e316336376887ec2e546fcb0cb714c777ee0b
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: Ib5423fdd064e4546f848c0b640b0ed0514c26d3a
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

Change-Id: Icc73522fe108685aa09de37172a61dfa8d16ea9b
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Possibly fixes other use-cases

Task-number: QTCREATORBUG-11159
Task-number: QTCREATORBUG-11165

Change-Id: I375143c9658c581267c7c8d61ce03c27858f2de5
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Doesn't really make sense to have the additional IDocument *editorDocument()
method.

Change-Id: I0a7420eb1afaa76f63c3f7e9c4b373acf624ffb9
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

...and rename it to FunctionUtils.

Change-Id: If076ec01fd82e8ba728764bdeab7e87e8bc1ff3b
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Required for correct resolving of first virtual appearance

Change-Id: I2307027f769fb2f4c0942f4aa4e0d2b5327562b5
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

This takes too much memory. For qtcreator.pro the numbers are as
follows:

    Patch applied:  ~ 1600MB (RES)
    Patch reverted: ~  510MB (RES)

This reverts commit 4c2daa90.

Task-number: QTCREATORBUG-10973
Change-Id: I843bd7c1ea4a26a1ec55ddc14c2a34a98d040922
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Robert Loehning <robert.loehning@digia.com>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

This adds definitions for the macros __FILE__, __LINE__, __DATE__ and
__TIME__ on demand.

As a side effect, this also introduces highlighting for the uses of
these macros.

Task-number: QTCREATORBUG-8036
Change-Id: Ib7546c7d45d2eecbc50c7883fc684e3497154405
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

Task-number: QTCREATORBUG-20

Change-Id: If6349605e1f396e88c8e3e008328fc2cac8a4119
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Przemyslaw Gorszkowski <pgorszkowski@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

If the cursor is at the end of the virtual function name but before '('
then scope is a function.

Task-number: QTCREATORBUG-10294

Change-Id: I83699d3fa33bc0f33d6524fa6d84cfc2b9e71f85
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

Change-Id: I8413252c90a1487d291f15d92837c30ab697b245
Reviewed-by: hjk <hjk121@nokiamail.com>

...when searching the overrides for virtual functions.

In case there is no override for the static type of a function call
expression, make sure to:

1) include the last provided override (look up bases)
2) and all overrides whose classes are derived from that static type

Task-number: QTCREATORBUG-10470

Change-Id: I2c01bfdc6cb35c5a01a000ebd81a2b322ce2b795
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

- Moves the findMatchingClassDeclaration() call from
  FollowSymbolUnderCursor::findLink into VirtualFunctionsAssistProcessor
  since we already have a SymbolFinder there
- Make canLookupVirtualFunctionOverrides a class member because we plan
  to add some methods
- Better parameter names/order for FunctionHelper::overrides()

Change-Id: I0a93ff5445352d47e808adad45485e520f06946e
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...involving templates.

Task-number: QTCREATORBUG-10496

Change-Id: I485d691043f27b03e120353f0dfd6a2fb0aa07ec
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...when using the mouse (Ctrl + Hover).

Task-number: QTCREATORBUG-10480

Change-Id: Ifac5cf7859e724da910a2f7b2fcecd901eca5e13
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...when using the mouse (Ctrl + Left click).

Task-number: QTCREATORBUG-10479

Change-Id: I54a21c449d8bb8e608d383752beb3b31c9c81783
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...by extracting parameters to a dedicated struct.

Change-Id: I2f3b83cbc62a8b4a91b44b3a729d0f0c578b53f2
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

...if the access token is T_DOT.

Task-number: QTCREATORBUG-10286
Change-Id: I85621a8166d4f18b3099488ac0ac05a0d6982c43
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

... when invoked on a macro that is defined inside that dialog.

Change-Id: I419c6675d70cfb8dd174f6a33f502b4c584baa3a
Reviewed-by: David Schulz <david.schulz@digia.com>