KT-759 Filter keywords auto completion according to context

idea/testData/completion/keywords/InParametersList.kt

@@ -0,0 +1,54 @@
+fun test(<caret>) {
+
+}
+
+// ABSENT: abstract
+// ABSENT: annotation
+// ABSENT: as
+// ABSENT: break
+// ABSENT: by
+// ABSENT: catch
+// ABSENT: class
+// ABSENT: continue
+// ABSENT: default
+// ABSENT: do
+// ABSENT: else
+// ABSENT: enum
+// ABSENT: false
+// ABSENT: final
+// ABSENT: finally
+// ABSENT: for
+// ABSENT: fun
+// ABSENT: get
+// ABSENT: if
+// ABSENT: import
+// ABSENT: in
+// ABSENT: inline
+// ABSENT: internal
+// ABSENT: is
+// ABSENT: null
+// ABSENT: object
+// ABSENT: open
+// EXIST:  out
+// ABSENT: override
+// ABSENT: package
+// ABSENT: private
+// ABSENT: protected
+// ABSENT: public
+// EXIST:  ref
+// ABSENT: return
+// ABSENT: set
+// ABSENT: super
+// ABSENT: This
+// ABSENT: this
+// ABSENT: throw
+// ABSENT: trait
+// ABSENT: true
+// ABSENT: try
+// ABSENT: type
+// ABSENT: val
+// ABSENT: var
+// ABSENT: vararg
+// ABSENT: when
+// ABSENT: where
+// ABSENT: while