true if the location is known, false otherwise.CdmLocation.isKnown
bool isKnown() const pure nothrow @nogc @safeReturns true if this location is known (has valid line/column).
A location is considered known if line is greater than 0.
bool isKnown() const pure nothrow @nogc @safeReturns true if this location is known (has valid line/column).
A location is considered known if line is greater than 0.
true if the location is known, false otherwise.