Regenerated files using the latest Grammar-Kit
Fix a compile error in HaxePsiParameter.java
Merge branch 'ClassHierarchy' into CHBnfChanges

Conflicts:
	gen/com/intellij/plugins/haxe/lang/psi/HaxeParameter.java
	src/com/intellij/plugins/haxe/lang/psi/impl/HaxePsiParameter.java
Make HaxeParameterList subclass PsiParameterList. Doesn't compile.
Fix HaxePsiMethod.getBody
Merge branch 'ClassHierarchy' into CHBnfChanges

Conflicts:
	gen/com/intellij/plugins/haxe/lang/psi/HaxeParameterList.java
Finishing making HaxeParameterList subclass PsiParameterList via HaxePsiParameterList.  Clean compiles.
Rename HaxePsiParameterList to HaxeParameterListBase
Rename HaxePsiParameter to HaxeParameterBase so PsiParameter is in the hierarchy for HaxeParameter.
Mixin PsiIdentifier int HaxeIdentifier
Reset the interface hierarchy for HaxeIdentifier.
Rename HaxeParameterBase->HaxeParameterPsiMixin.  Fix its hierarchy.
Renamed HaxeIdentifierBase->HaxeIdentifierPsiMixin.
Rename HaxeParameterListBase->HaxeParameterListPsiMixin. Fixed its hierarchy.
Rename HaxePsiMethod->HaxeMethodPsiMixin, plus class hierarchy reorganization.
Merge branch 'ClassHierarchy' of https://github.com/tivo/intellij-haxe into ClassHierarchy
Mix PsiXXX classes into the Haxe PSI tree (incomplete).  Renamed several HaxePsiXXX classes to HaxeXXXPsiMixin while rearranging the class hierarchy.