Clang: Decrease order of snippets

The order is 0 by default and thus the snippet items were at the very
top, e.g.:

  enum EnumType { EnumValue };

  void f()
  {
      EnumType et = // Complete here and see snippet items at top
  }

Change-Id: I70a160d102b91a2589972354c50aa5f0b29323e8
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp

@@ -136,7 +136,8 @@ using namespace CPlusPlus;
 using namespace TextEditor;
 
 ClangCompletionAssistProcessor::ClangCompletionAssistProcessor()
-    : m_completionOperator(T_EOF_SYMBOL)
+    : CppCompletionAssistProcessor(100)
+    , m_completionOperator(T_EOF_SYMBOL)
 {
 }
 

src/plugins/cpptools/cppcompletionassistprocessor.cpp

@@ -40,7 +40,7 @@ using namespace CPlusPlus;
 
 namespace CppTools {
 
-CppCompletionAssistProcessor::CppCompletionAssistProcessor()
+CppCompletionAssistProcessor::CppCompletionAssistProcessor(int snippetItemOrder)
     : m_positionForProposal(-1)
     , m_preprocessorCompletions(QStringList()
           << QLatin1String("define")
@@ -72,7 +72,8 @@ CppCompletionAssistProcessor::CppCompletionAssistProcessor()
           << QLatin1String("endif"))
     , m_hintProposal(0)
     , m_snippetCollector(QLatin1String(CppEditor::Constants::CPP_SNIPPETS_GROUP_ID),
-                         QIcon(QLatin1String(":/texteditor/images/snippet.png")))
+                         QIcon(QLatin1String(":/texteditor/images/snippet.png")),
+                         snippetItemOrder)
 {
 }
 

src/plugins/cpptools/cppcompletionassistprocessor.h

@@ -45,7 +45,7 @@ namespace CppTools {
 class CPPTOOLS_EXPORT CppCompletionAssistProcessor : public TextEditor::IAssistProcessor
 {
 public:
-    CppCompletionAssistProcessor();
+    CppCompletionAssistProcessor(int snippetItemOrder = 0);
 
 protected:
     void addSnippets();