[cfe-dev] Question regarding hasCastKind matcher

[Farzad Sadeghi via cfe-dev]

what should be the input to the hasCAstKind matcher?
the documentation says "CastKind Kind".
so i wrote this matcher:
castExpr(hasCastKind(CK_ArrayToPointerDecay))

but clang-query returns this:
1:2: Error parsing argument 1 for matcher castExpr.
1:11: Error parsing argument 1 for matcher hasCastKind.
1:25: Error parsing matcher. Found token <_> while looking for '('.

so i thought maybe i should give it a string:
castExpr(hasCastKind("CK_ArrayToPointerDecay"))

but then i get this:
1:2: Error parsing argument 1 for matcher castExpr.
1:11: Error building matcher hasCastKind.
1:23: Incorrect type for arg 1. (Expected = string) != (Actual = String)

what should the input be?
-- 
Farzad Sadeghi