KT-3376 Added appendText and appendBytes functions to kotlin.io.File

 #KT-3375 fixed
Do not create LightClasses for kt files as sources for libraries
Rename method
Remove redundant check (it is included in LightClassUtils.getPsiClass)
Refactor JetLineMarkerProvider
Fix intention description
Add assignment creation to JetPsiFactory
Fix syntax error in template
Fix "family names" of intentions
Invoke top level function with default argument using src class
Merge pull request #241 from katyasosa/master

Added appendBytes and appendText functions to kotlin.io.File
ChangeFunctionReturnTypeFix quickfix
Quickfix for COMPARE_TO_TYPE_MISMATCH
Map RETURN_TYPE_MISMATCH_ON_OVERRIDE to ChangeFunctionReturnTypeFix
ChangeVariableTypeFix
Implement quickfix for MANY_CLASSES_IN_SUPERTYPE_LIST
Rename method
USELESS_PARENTHESES diagnostic
Update tests