C++: Clean up dev tools.

* Add -h and -help options describing the tools and their usage.

* Make the tools compile and run on Windows (MinGW, MSVC).

* Rename project dirs, executables and main source files to more
  meaningful names:
  - Use same base name for project dir, *.pro file, main source file
    and (if applicable) script file.
  - Use the prefix "cplusplus-".
  - The names are now:
      - gen-cpp-ast/generate-ast --> cplusplus-update-frontend
      - mkvisitor --> cplusplus-mkvisitor
      - cplusplus-dump/cplusplus0 --> cplusplus-ast2png

* Get rid of 'c++' shell scripts.

* Get rid of duplicates of 'conf.c++'. Rename to 'pp-configuration.inc'.

* Introduce src/tools/cplusplus-tools-utils containing common stuff
  that is used at least in two tools. 'pp-configuration.inc' can also be
  found here.

* cplusplus-update-frontend:
  - Print file paths of written files to stdout.
  - Convenience: Use default values referencing the appropriate dirs and
    files.

* cplusplus-mkvisitor:
  - Take only one argument, namely the path to AST.h.
  - Convenience: Use default path to AST.h.

* cplusplus-ast2png:
  - Make it run without LD_LIBRARY_PATH.
  - As the name suggests, generate image files in png format (needs
    'dot' from graphviz).
  - Convenience: Read from stdin, which useful for small snippets.

Change-Id: I79c4061fce4a1571c0588dfedd50d4a70715d9df
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

tests/manual/cplusplus-frontend/c++

@@ -1,5 +0,0 @@
-#!/bin/sh
-me=$(dirname $0)
-${CPP-gcc} -U__BLOCKS__ -xc++ -E -include $me/conf.c++ $* > $me/file.i
-$me/cplusplus0 $me/file.i
-

tests/manual/cplusplus-frontend/conf.c++

@@ -1,15 +0,0 @@
-#define __extension__
-#define __context__
-#define __range__
-#define __asm(a...)
-#define __asm__(a...)
-#define   restrict
-#define __restrict
-#define __restrict__
-// #define __weak
-#define __builtin_va_arg(a,b) ((b)0)
-#define __stdcall
-#define __fastcall
-#define __imag__
-#define __real__
-#define __complex__

tests/manual/cplusplus-frontend/cplusplus-frontend.cpp

@@ -40,6 +40,8 @@
 #include <CoreTypes.h>
 #include <CppDocument.h>
 
+#include "cplusplus-tools-utils.h"
+
 #include <QFile>
 #include <QList>
 #include <QCoreApplication>
@@ -54,18 +56,47 @@
 
 using namespace CPlusPlus;
 
+void printUsage()
+{
+    std::cout << "Usage: " << qPrintable(QFileInfo(qApp->arguments().at(0)).fileName())
+              << " [-v] <file1> <file2> ...\n\n"
+              << "Run the parser with the given files.\n";
+}
+
 int main(int argc, char *argv[])
 {
     QCoreApplication app(argc, argv);
+    QStringList args = app.arguments();
+    args.removeFirst();
 
-    QStringList files = app.arguments();
-    files.removeFirst();
+    bool optionVerbose = false;
 
+    // Process options & arguments
+    if (args.contains("-v")) {
+        optionVerbose = true;
+        args.removeOne("-v");
+    }
+    const bool helpRequested = args.contains("-h") || args.contains("-help");
+    if (args.isEmpty() || helpRequested) {
+        printUsage();
+        return helpRequested ? EXIT_SUCCESS : EXIT_FAILURE;
+    }
+
+    // Process files
+    const QStringList files = args;
     foreach (const QString &fileName, files) {
-        QFile file(fileName);
-        if (! file.open(QFile::ReadOnly))
-            continue;
+        // Run preprocessor
+        const QString fileNamePreprocessed = fileName + QLatin1String(".preprocessed");
+        CplusplusToolsUtils::SystemPreprocessor preprocessor(optionVerbose);
+        preprocessor.preprocessFile(fileName, fileNamePreprocessed);
 
+        // Run parser
+        QFile file(fileNamePreprocessed);
+        if (! file.open(QFile::ReadOnly)) {
+            std::cerr << "Error: Could not open file \"" << qPrintable(file.fileName()) << "\"."
+                      << std::endl;
+            return EXIT_FAILURE;
+        }
         const QByteArray source = file.readAll();
         file.close();
 

tests/manual/cplusplus-frontend/cplusplus-frontend.pro

@@ -1,21 +1,13 @@
 QT = core gui
 macx:CONFIG -= app_bundle
-TARGET = cplusplus0
+win32:CONFIG += console
+TEMPLATE = app
+TARGET = cplusplus-frontend
+DESTDIR = ./
+
 include(../../../qtcreator.pri)
-include($$IDE_SOURCE_TREE/src/libs/cplusplus/cplusplus.pri)
-include($$IDE_SOURCE_TREE/src/libs/languageutils/languageutils.pri)
-include($$IDE_SOURCE_TREE/src/libs/utils/utils.pri)
+include($$IDE_SOURCE_TREE/src/libs/cplusplus/cplusplus-lib.pri)
+include($$IDE_SOURCE_TREE/tests/auto/qttestrpath.pri)
+include(../../../src/tools/cplusplus-tools-utils/cplusplus-tools-utils.pri)
 
-# Input
-SOURCES += main.cpp
-
-unix {
-    debug:OBJECTS_DIR = $${OUT_PWD}/.obj/debug-shared
-    release:OBJECTS_DIR = $${OUT_PWD}/.obj/release-shared
-
-    debug:MOC_DIR = $${OUT_PWD}/.moc/debug-shared
-    release:MOC_DIR = $${OUT_PWD}/.moc/release-shared
-
-    RCC_DIR = $${OUT_PWD}/.rcc/
-    UI_DIR = $${OUT_PWD}/.uic/
-}
+SOURCES += cplusplus-frontend.cpp