Implemented heuristic to make a sensible preselection for the autocom…

…pletion of the parameters of the @param and @tparam commands.

People typically document one function parameter after the next. So if one types "@param" to document the second function parameter after having documented the first function parameter, it is convenient if the autocomplete box already has the second function parameter preselected. The user then just has to hit the tab key to insert the function parameter. This heuristic is implemented in this commit, both for @param and for @tparam, for functions, classes and macros.

Tests/InputFiles/ManualTests_ParameterCompletion.cpp

@@ -22,9 +22,10 @@ void funcDeclarationWithUnnamedParams(int, double);
 /// @param
 void funcDeclWithDefaultArgs(const int i = 42, double d = 43.0);
 
+/// @param someInt
 /// @param
 /// @tparam
-void funcDefWithDefaultArgs(const int i = 42, double d = 43.0) { }
+void funcDefWithDefaultArgs(const int someInt = 42, double someDouble = 43.0) { }
 
 /// @param
 void funcDeclWithInlineClassDecl(class InlClassDecl param);
@@ -46,10 +47,14 @@ int templateFunctionDefinition(double var, int iiiii, int arr[], double volatile
 template <int iTempl>
 void templateFunctionDeclaration(int d);
 
-/// @tparam 
-/// @param[in]
-/// @param[out]
-/// @param[in,out]
+/// @tparam tParam2 some description
+/// @tparam tParam3 more description
+/// @param[in] param2 desc
+/// test
+/// test @p
+/// @param[out] param3
+/// 
+/// @param[in,out] param10
 /// @a
 /// @p
 ///
@@ -133,7 +138,9 @@ struct TemplateStructDecl;
 
 
 /// @tparam
-/// @param
+/// @param y
+/// @param zzzzz
+/// @param x
 #define SOME_MACRO(x, y, zzzzz) x
 
 /// @param