validate rst field for :number-lines:, :status: (#18304)

compiler/docgen.nim

@@ -164,6 +164,7 @@ template declareClosures =
     of meNewSectionExpected: k = errNewSectionExpected
     of meGeneralParseError: k = errGeneralParseError
     of meInvalidDirective: k = errInvalidDirectiveX
+    of meInvalidRstField: k = errInvalidRstField
     of meFootnoteMismatch: k = errFootnoteMismatch
     of mwRedefinitionOfLabel: k = warnRedefinitionOfLabel
     of mwUnknownSubstitution: k = warnUnknownSubstitutionX

compiler/lineinfos.nim

@@ -37,6 +37,7 @@ type
     errGeneralParseError,
     errNewSectionExpected,
     errInvalidDirectiveX,
+    errInvalidRstField,
     errFootnoteMismatch,
     errProveInit, # deadcode
     errGenerated,
@@ -96,6 +97,7 @@ const
     errGeneralParseError: "general parse error",
     errNewSectionExpected: "new section expected $1",
     errInvalidDirectiveX: "invalid directive: '$1'",
+    errInvalidRstField: "invalid field: $1",
     errFootnoteMismatch: "number of footnotes and their references don't match: $1",
     errProveInit: "Cannot prove that '$1' is initialized.",  # deadcode
     errGenerated: "$1",